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Rule2026-11140

Federal Independent Dispute Resolution Operations

Primary source

Metadata and text below are from the Federal Register, a public-domain U.S. government work. Always verify the official published version before relying on it for any legal matter.

Published
June 4, 2026
Effective
August 3, 2026

Issuing agencies

Personnel Management OfficeTreasury DepartmentInternal Revenue ServiceLabor DepartmentEmployee Benefits Security AdministrationHealth and Human Services Department

Abstract

This document sets forth these final rules related to certain provisions of the No Surprises Act regarding the Federal independent dispute resolution (IDR) process, which was established as part of the Consolidated Appropriations Act, 2021 (CAA). These rules finalize new requirements relating to the disclosure of information that group health plans and health insurance issuers offering group or individual health insurance coverage must include along with the initial payment or notice of denial of payment for certain items and services subject to the surprise billing protections in the No Surprises Act. These final rules also require plans and issuers to communicate information by using claim adjustment reason codes (CARCs) and remittance advice remark codes (RARCs), as specified in guidance, when providing any paper or electronic remittance advice (ERA) to an entity that does not have a contractual relationship with the plan or issuer. This document also finalizes amendments to certain requirements related to the open negotiation period preceding the Federal IDR process, the initiation of the Federal IDR process, the Federal IDR dispute eligibility review process, and the payment and collection of administrative fees and certified IDR entity fees. This document also finalizes the definition of bundled payment arrangements, amends requirements related to batched items and services and amends the rules for extensions of timeframes due to extenuating circumstances. Additionally, this document finalizes provisions that require plans and issuers to register in the Federal IDR portal. In accordance with Federal law, a summary of these rules may be found at https://www.regulations.gov/.

Full Text

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<title>Federal Register, Volume 91 Issue 107 (Thursday, June 4, 2026)</title>
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[Federal Register Volume 91, Number 107 (Thursday, June 4, 2026)]
[Rules and Regulations]
[Pages 33900-34081]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2026-11140]



[[Page 33899]]

Vol. 91

Thursday,

No. 107

June 4, 2026

Part II





Office of Personnel Management





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5 CFR Part 890





Department of the Treasury





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Internal Revenue Service





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26 CFR Part 54





Department of Labor





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Employee Benefits Security Administration





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29 CFR Part 2590





Department of Health and Human Services





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45 CFR Part 149





Federal Independent Dispute Resolution Operations; Final Rule

Federal Register / Vol. 91, No. 107 / Thursday, June 4, 2026 / Rules 
and Regulations

[[Page 33900]]


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OFFICE OF PERSONNEL MANAGEMENT

5 CFR Part 890

RIN 3206-AO48

DEPARTMENT OF THE TREASURY

Internal Revenue Service

26 CFR Part 54

[TD 10049]
RIN 1545-BQ55

DEPARTMENT OF LABOR

Employee Benefits Security Administration

29 CFR Part 2590

RIN 1210-AC17

DEPARTMENT OF HEALTH AND HUMAN SERVICES

45 CFR Part 149

[CMS-9897-F]
RIN 0938-AV15


Federal Independent Dispute Resolution Operations

AGENCY: Office of Personnel Management; Internal Revenue Service, 
Department of the Treasury; Employee Benefits Security Administration, 
Department of Labor; Centers for Medicare & Medicaid Services, 
Department of Health and Human Services.

ACTION: Final rule.

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SUMMARY: This document sets forth these final rules related to certain 
provisions of the No Surprises Act regarding the Federal independent 
dispute resolution (IDR) process, which was established as part of the 
Consolidated Appropriations Act, 2021 (CAA). These rules finalize new 
requirements relating to the disclosure of information that group 
health plans and health insurance issuers offering group or individual 
health insurance coverage must include along with the initial payment 
or notice of denial of payment for certain items and services subject 
to the surprise billing protections in the No Surprises Act. These 
final rules also require plans and issuers to communicate information 
by using claim adjustment reason codes (CARCs) and remittance advice 
remark codes (RARCs), as specified in guidance, when providing any 
paper or electronic remittance advice (ERA) to an entity that does not 
have a contractual relationship with the plan or issuer. This document 
also finalizes amendments to certain requirements related to the open 
negotiation period preceding the Federal IDR process, the initiation of 
the Federal IDR process, the Federal IDR dispute eligibility review 
process, and the payment and collection of administrative fees and 
certified IDR entity fees. This document also finalizes the definition 
of bundled payment arrangements, amends requirements related to batched 
items and services and amends the rules for extensions of timeframes 
due to extenuating circumstances. Additionally, this document finalizes 
provisions that require plans and issuers to register in the Federal 
IDR portal. In accordance with Federal law, a summary of these rules 
may be found at <a href="https://www.regulations.gov/">https://www.regulations.gov/</a>.

DATES: 
    Effective date: These final rules are effective on August 3, 2026.
    Applicability date: See section II.H. of these final rules for 
information on the applicability dates.

FOR FURTHER INFORMATION CONTACT: Cameron Stokes, Office of Personnel 
Management, at 202-936-0162; Alexander Krupnick, Internal Revenue 
Service, Department of the Treasury, at 202-317-5500; Elizabeth 
Schumacher or Rebecca Miller, Employee Benefits Security 
Administration, Department of Labor, at 202-693-8335; Bryan Kirk, 
Centers for Medicare & Medicaid Services, Department of Health and 
Human Services, at 301-492-4122.
    Customer Service Information: Information from the Office of 
Personnel Management (OPM) on health benefits plans offered under the 
Federal Employees Health Benefits (FEHB) Program can be found on the 
OPM website (<a href="http://www.opm.gov/healthcare-insurance/healthcare/">http://www.opm.gov/healthcare-insurance/healthcare/</a>). 
Individuals interested in obtaining information from the Department of 
Labor (DOL) concerning employment-based health coverage laws may call 
the Employee Benefits Security Administration (EBSA) Toll-Free Hotline 
at 1-866-444-EBSA (3272) or visit the DOL's website (<a href="http://www.dol.gov/agencies/ebsa">www.dol.gov/agencies/ebsa</a>). In addition, information from the Department of Health 
and Human Services (HHS) on private health insurance coverage and 
coverage provided by non-Federal governmental group health plans can be 
found on the Centers for Medicare & Medicaid Services (CMS) website 
(<a href="http://www.cms.gov/marketplace">http://www.cms.gov/marketplace</a>), information on health care reform can 
be found at <a href="http://www.healthcare.gov">http://www.healthcare.gov</a>, and information on surprise 
medical bills can be found at <a href="http://www.cms.gov/nosurprises">http://www.cms.gov/nosurprises</a>.

SUPPLEMENTARY INFORMATION:

I. Background

A. Preventing Surprise Medical Bills and Establishing the Federal 
Independent Dispute Resolution (IDR) Process

    The No Surprises Act amended chapter 100 of the Internal Revenue 
Code (Code), Part 7 of the Employee Retirement Income Security Act 
(ERISA), and title XXVII of the Public Health Service Act (PHS Act) to 
provide Federal protections against surprise billing by limiting out-
of-network cost sharing and prohibiting balance billing in many of the 
circumstances in which surprise bills most frequently arise.\1\ Section 
102 of the No Surprises Act added section 9816 of the Code, section 716 
of ERISA, and section 2799A-1 of the PHS Act, which contain limitations 
on cost sharing and requirements regarding the timing of initial 
payments and notices of denial of payment by plans and issuers for 
emergency services furnished by nonparticipating providers and 
nonparticipating emergency facilities, and for non-emergency services 
furnished by nonparticipating providers for patient visits to 
participating health care facilities. ``Health care facilities'' are 
generally defined as hospitals, hospital outpatient departments, 
critical access hospitals, and ambulatory surgical centers.\2\
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    \1\ On December 27, 2020, the CAA was enacted. Title I of the 
CAA is also known as the No Surprises Act. Public Law 116-260 
(December 27, 2020).
    \2\ Section 102(d)(1) of the No Surprises Act amended the 
Federal Employees Health Benefits Act, 5 U.S.C. 8901 et seq., by 
adding a new subsection (p) to 5 U.S.C. 8902. Under this new 
provision, each FEHB Program contract must require a carrier to 
comply with requirements described in sections 9816 and 9817 of the 
Code, sections 716 and 717 of ERISA, and sections 2799A-1 and 2799A-
2 of the PHS Act (as applicable) in the same manner as these 
provisions apply for a group health plan or health insurance issuer 
offering group or individual health insurance coverage.
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    Section 103 of the No Surprises Act established a Federal IDR 
process that plans and issuers and nonparticipating providers and 
facilities may utilize to resolve certain disputes regarding out-of-
network rates under section 9816 of the Code, section 716 of ERISA, and 
section 2799A-1 of the PHS Act.
    Section 105 of the No Surprises Act added section 9817 of the Code, 
section 717 of ERISA, and section 2799A-2 of the PHS Act. These 
sections contain limitations on cost sharing and requirements for the 
timing of initial payments and notices of denial of payment by plans 
and issuers for air

[[Page 33901]]

ambulance services furnished by nonparticipating providers of air 
ambulance services and allow plans and issuers and nonparticipating 
providers of air ambulance services to utilize the Federal IDR process.
    The No Surprises Act also added provisions to title XXVII of the 
PHS Act in a new part E that apply to health care providers, 
facilities, and providers of air ambulance services, such as 
prohibitions on balance billing for certain items and services and 
requirements related to disclosures about balance billing protections.
    The Departments of the Treasury, Labor, and HHS (the Departments), 
along with the Office of Personnel Management (OPM), are issuing 
regulations in phases that implement provisions of the No Surprises Act 
and have issued multiple rulemakings since 2021 to implement various 
provisions. More specifically relevant to these final rules, the 
Departments and OPM issued interim final rules (July 2021 interim final 
rules \3\ and October 2021 interim final rules \4\), and the 
Departments issued final rules (August 2022 final rules \5\) 
implementing provisions of sections 9816 and 9817 of the Code, sections 
716 and 717 of ERISA, and sections 2799A-1 and 2799A-2 of the PHS Act. 
These rules implement provisions to protect consumers from surprise 
medical bills for emergency services, non-emergency services furnished 
by nonparticipating providers for patient visits to participating 
facilities \6\ in certain circumstances, and air ambulance services 
furnished by nonparticipating providers of air ambulance services. 
These rules also implement provisions to establish a Federal IDR 
process to determine payment amounts when there is a dispute between 
plans or issuers and providers, facilities, or providers of air 
ambulance services about the out-of-network rate for these services in 
cases where a specified State law or an applicable All-Payer Model 
Agreement does not provide a method for determining the total amount 
payable.
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    \3\ 86 FR 36872 (July 13, 2021).
    \4\ 86 FR 55980 (October 7, 2021).
    \5\ 87 FR 52618 (August 26, 2022).
    \6\ References to a ``participating facility'' in this preamble 
mean a ``participating health care facility,'' as defined at 26 CFR 
54.9816-3T, 29 CFR 2590.716-3, and 45 CFR 149.30.
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    The July 2021 interim final rules and October 2021 interim final 
rules generally apply to plans and issuers (including grandfathered 
health plans) for plan years (in the individual market, policy years) 
beginning on or after January 1, 2022, and to health care providers, 
facilities, and providers of air ambulance services for items and 
services furnished during plan years (in the individual market, policy 
years) beginning on or after January 1, 2022.\7\ The August 2022 final 
rules became effective October 25, 2022, and are applicable for items 
and services provided or furnished on or after October 25, 2022, for 
plan years (in the individual market, policy years) beginning on or 
after January 1, 2022.
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    \7\ The interim final rules also include interim final 
regulations under 5 U.S.C. 8902(p) issued by OPM that specify how 
certain provisions of the No Surprises Act apply to health benefit 
plans offered by carriers under the Federal Employees Health 
Benefits Act. These provisions apply to carriers in the FEHB Program 
for contract years beginning on or after January 1, 2022. The 
disclosure requirements at 45 CFR 149.430 regarding patient 
protections against balance billing are applicable as of January 1, 
2022.
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    As outlined in sections I.D and I.F of the preamble to the Federal 
Independent Dispute Resolution Operations proposed rules \8\ (2023 
proposed rules), certain provisions of these rules relating to the 
methodology for calculating the qualifying payment amount (QPA), the 
information that a certified IDR entity must consider in making a 
payment determination, and certain restrictions on the qualified IDR 
items or services that may be considered jointly as part of a batched 
dispute have been vacated by the United States District Court for the 
Eastern District of Texas (District Court).\9\ The District Court also 
vacated guidance \10\ raising the Federal IDR administrative fee from 
$50 to $350 per party for disputes initiated during the calendar year 
beginning January 1, 2023. On October 30, 2024, the Fifth Circuit 
issued an opinion and order in TMA III, which partially reversed the 
district court's decision for certain provisions related to the 
methodology for calculating the QPA that had been vacated by the 
district court in TMA III. On May 30, 2025, the Fifth Circuit granted a 
request from the plaintiffs in TMA III for a rehearing en banc and 
vacated the Fifth Circuit's October 30, 2024 panel opinion. As a 
result, the district court's decision from August 24, 2023 continues to 
bind the Departments pending the Fifth Circuit's en banc decision.
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    \8\ 88 FR 75744 (November 3, 2023).
    \9\ See Tex. Med. Ass'n v. U.S. Dep't of Health & Hum. Servs., 
587 F. Supp. 3d 528 (E.D. Tex. 2022) (TMA I); Tex. Med. Ass'n v. 
U.S. Dep't of Health & Hum. Servs., 654 F. Supp. 3d 575 (E.D. Tex. 
2023), aff'd, No. 23-40217 (5th Cir. August 2, 2024) (TMA II); Tex. 
Med. Ass'n v. U.S. Dep't of Health & Hum. Servs., Case No. 6:22-cv-
450-JDK (E.D. Tex. August 24, 2023), Tex. Med. Ass'n v. U.S. Dep't 
of Health & Hum. Servs., 120 F.4th 494 (5th Cir. 2024), and Tex. 
Med. Ass'n v. U.S. Dep't of Health & Hum. Servs., Case No. 23-40605 
(5th Cir. May 30, 2025) (collectively, TMA III); and Tex. Med. Ass'n 
v. U.S. Dep't of Health & Hum. Servs., Case No. 6:23-cv-00059-JDK, 
(E.D. Tex. August 3, 2023) (TMA IV).
    \10\ See Amendment to the Calendar Year 2023 Fee Guidance for 
the Federal Independent Dispute Resolution Process Under the No 
Surprises Act: Change in Administrative Fee (December 23, 2022), 
available at <a href="https://www.cms.gov/cciio/resources/regulations-and-guidance/downloads/amended-cy2023-fee-guidance-Federal-independent-dispute-resolution-process-nsa.pdf">https://www.cms.gov/cciio/resources/regulations-and-guidance/downloads/amended-cy2023-fee-guidance-Federal-independent-dispute-resolution-process-nsa.pdf</a>.
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    On September 26, 2023, the Departments published the Federal IDR 
Process Administrative Fee and Certified IDR Entity Fee Ranges Proposed 
Rules (IDR Process Fees proposed rules) \11\ to amend the 
administrative fee and certified IDR entity fee provisions in the 
October 2021 interim final rules to provide additional guidance and 
promote transparency in the administrative fee calculation and 
certified IDR entity fee ranges. These rules were finalized on December 
21, 2023 (IDR Process Fees final rules) \12\ and are effective for 
disputes initiated on or after January 22, 2024.
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    \11\ 88 FR 65888 (September 26, 2023).
    \12\ 88 FR 88494 (December 21, 2023).
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    On November 3, 2023, the Departments issued the Federal Independent 
Dispute Resolution Operations Proposed Rules (2023 proposed rules) to 
further amend existing requirements related to the Federal IDR process. 
The comment period for the 2023 proposed rules closed on January 2, 
2024. On January 22, 2024, the Departments reopened the comment period 
from January 22, 2024, to February 5, 2024, to give interested parties 
additional time to review the 2023 proposed rules and submit comments.

B. The Federal IDR Process to Date

    On April 15, 2022, the Departments launched the Federal IDR portal 
to accept disputes regarding the appropriate out-of-network rate for 
claims subject to the surprise billing protections of the No Surprises 
Act. In the first year of operations, disputing parties submitted 
489,000 disputes, which is 14 times the number of disputes that the 
Departments had expected to receive in an entire calendar 
year.<SUP>13 14</SUP> The high volume of dispute submissions has 
continued, and as of January 31, 2026, disputing parties have

[[Page 33902]]

submitted over 5.1 million disputes for review.\15\
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    \13\ See Federal Independent Dispute Resolution Process--Status 
Update, available at <a href="https://www.cms.gov/files/document/Federal-idr-processstatus-update-april-2023.pdf">https://www.cms.gov/files/document/Federal-idr-processstatus-update-april-2023.pdf</a>.
    \14\ In the regulatory impact analysis of the October 2021 
interim final rules (86 FR 55980, 56068-56070), the Departments 
estimated that 17,333 disputes involving non-air ambulance services 
and 4,899 disputes involving air ambulance services would be 
submitted to the Federal IDR process during the first year of 
implementation.
    \15\ See Federal IDR Bi-Monthly Reports, as of January 31, 2025, 
available at <a href="https://www.cms.gov/nosurprises/policies-and-resources/reports">https://www.cms.gov/nosurprises/policies-and-resources/reports</a>.
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    Several factors likely contribute to the high volume of initiated 
disputes and longer timeframes for resolution of disputes in the 
Federal IDR process. First, providers, facilities, and providers of air 
ambulance services (providers)Sec. \16\ have alleged that plans' and 
issuers' QPA calculations are sometimes artificially low and that plans 
and issuers are making initial payments based on these artificially low 
QPAs, which incentivizes the use of the Federal IDR process for a 
larger number of items and services. Second, providers, plans and 
issuers have alleged, on numerous occasions, that the other party 
regularly fails to engage in meaningful open negotiation during the 30-
business-day open negotiation period, resulting in relatively few 
disputes being settled outside of the Federal IDR process. Interested 
parties also shared that the lack of meaningful engagement in open 
negotiation contributes to inefficiencies within the Federal IDR 
process because disputing parties that fail to engage in open 
negotiation may not exchange information that would facilitate the 
Federal IDR process, such as contact information and other required 
disclosures, or may exchange only incomplete information. Third, the 
District Court's successive rulings in TMA II, TMA IV, and TMA III have 
necessitated multiple temporary shutdowns of the Federal IDR process to 
comply with the District Court's orders. Reopening the Federal IDR 
portal each time has required the Departments to draft new guidance, 
engage in new rulemaking, implement significant system updates, and 
communicate changes to disputing parties and certified IDR entities. 
Finally, initiating parties are submitting a large number of ineligible 
disputes, leading to both a high volume of dispute submissions and slow 
processing of disputes.
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    \16\ For purposes of these final rules, unless otherwise stated, 
whenever the Departments are referring to providers, facilities, and 
providers of air ambulance services, or to ``providers'' for short 
that are parties to Federal IDR process disputes, the Departments 
are referring to nonparticipating providers, facilities, and 
providers of air ambulance services.
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    From April 15, 2022 to December 31, 2024, non-initiating parties 
challenged the eligibility of 976,721 disputes for the Federal IDR 
process, and certified IDR entities found 355,804 disputes 
ineligible.\17\ Ineligible disputes often involve an item or service 
that is not a qualified IDR item or service because it is payable by a 
health plan or coverage that is not subject to the surprise billing 
protections of the No Surprises Act, such as Medicare or Medicaid, or 
because the item or service is subject to a specified State law or an 
All-Payer Model Agreement. Additionally, many batched disputes were 
found ineligible due to the initiating party incorrectly batching items 
or services in a manner that did not comply with the regulations, such 
as batching claims paid by different plans or issuers.\18\ Certified 
IDR entities have similarly reported encountering incorrectly bundled 
disputes. For example, a provider may incorrectly try to submit as a 
bundle an emergency room facility code with various item and service 
codes included as line items, rather than properly submitting a single 
service code (for example, a Diagnosis-Related Group (DRG) code under 
which a provider, facility, or provider of air ambulance services can 
bill for multiple items or services).\19\ Disputes are also ineligible 
when the disputing parties initiate the Federal IDR process after 
failing to satisfy the 30-business-day open negotiation period 
requirements specified under 29 CFR 2590.716-8(b)(1) and 45 CFR 
149.510(b)(1) or after 4 business days after the end of the 30-
business-day open negotiation period as specified under 29 CFR 
2590.716-8(b)(2)(i) and 45 CFR 149.510(b)(2)(i).
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    \17\ A dispute is not eligible for the Federal IDR process 
unless it concerns an item or service that meets the definition of a 
qualified IDR item or service. 29 CFR 2590.716-8(a)(2)(xi) and 45 
CFR 149.510 (a)(2)(xi).
    \18\ 29 CFR 2590.716-8(c)(3)(i)(B) and 45 CFR 
149.510(c)(3)(i)(B). The District Court vacated the batching 
provisions of 45 CFR 149.510(c)(3)(i)(C), 26 CFR 54.9816-
8T(c)(3)(i)(C), and 29 CFR 2590.716-8(c)(3)(i)(C) in Tex. Med. Ass'n 
v. U.S. Dep't of Health & Hum. Servs.,Case No. 6:23-cv-59-JDK (E.D. 
Tex. Aug. 3, 2023) (TMA IV).
    \19\ 29 CFR 2590.716-8(c)(3)(ii) and 45 CFR 149.510(c)(3)(ii).
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    To address the high volume of disputes submitted to the Federal IDR 
process, the Departments have provided ongoing technical assistance to 
certified IDR entities and disputing parties by issuing guidance as 
well as performing research and outreach on dispute eligibility 
determinations.\20\ In addition, the Departments have implemented 
Federal IDR portal system enhancements, such as enabling non-initiating 
parties to submit supporting documentation to contest dispute 
eligibility within their response to the notice of IDR initiation and 
requiring non-initiating parties to attest to the health plan type.\21\ 
This allows the Departments to collect information regarding dispute 
eligibility earlier in the process to identify whether the eligibility 
requirements are met. However, despite the efforts to date, the 
Departments and certified IDR entities continue to experience 
challenges related to determining eligibility for the Federal IDR 
process, such as delays due to necessary outreach by the certified IDR 
entities to the disputing parties to obtain or verify information 
regarding the eligibility of a dispute.
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    \20\ U.S. Department of Health and Human Services, U.S. 
Department of Labor, and U.S. Department of the Treasury, Federal 
Independent Dispute Resolution (IDR) Process Technical Assistance 
for Certified IDR Entities, August 2022, available at <a href="https://www.cms.gov/files/document/TA-certified-independent-dispute-resolution-entities-August-2022.pdf">https://www.cms.gov/files/document/TA-certified-independent-dispute-resolution-entities-August-2022.pdf</a>.
    \21\ See notices of eligibility enhancements at <a href="https://www.cms.gov/nosurprises/notices">https://www.cms.gov/nosurprises/notices</a>.
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C. Federal IDR Operations Proposed Rules

    The 2023 proposed rules were intended to address issues that are 
critical to the timely rendering of payment determinations and to 
address feedback from interested parties and certified IDR entities to 
improve the functioning of the Federal IDR process.
    Specifically, the 2023 proposed rules sought to enhance sharing 
information for plans, issuers, and providers by requiring that these 
parties share specific information before initiating the Federal IDR 
process, including by providing No Surprises Act-specific claim 
adjustment reason codes (CARCs) and remittance advice remark codes 
(RARCs) with a remittance advice. The 2023 proposed rules also sought 
to amend the information that must be disclosed about the QPA. 
Additionally, the 2023 proposed rules proposed to require plans and 
issuers to register with the Federal IDR portal to facilitate 
identification of the parties to a dispute and determine whether 
coverage of an item or service that is the subject of the dispute is 
subject to a specified State law, an All-Payer Model Agreement, or the 
Federal IDR process for determining the out-of-network rate. To 
facilitate communication and improve open negotiation, the 2023 
proposed rules sought to amend to the content requirements of the 
standard open negotiation notice, establish requirements related to an 
open negotiation response notice, and clarify the timing for when the 
open negotiation period begins. Additionally, the 2023 proposed rule 
included amendments to the notice of IDR initiation and new 
requirements for the initiation response from the non-initiating 
party.\22\ The rules also proposed establishing a new process for

[[Page 33903]]

providing and receiving notices related to the IDR process.
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    \22\ OMB control number 1210-0169.
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    The 2023 proposed rules also sought to introduce clearer timeframes 
for certain steps in the Federal IDR process. More specifically, the 
2023 proposed rules proposed procedures for selecting a certified IDR 
entity and handling conflict-of-interest reviews to account for the 
time it takes certified IDR entities to confirm that they do not have a 
conflict of interest with either party. The 2023 proposed rules also 
proposed to establish a departmental eligibility review process and 
require that additional information be submitted to support eligibility 
determinations, conflict-of-interest reviews, or payment 
determinations. The 2023 proposed rules also proposed to establish a 
standard process for disputes to be withdrawn from the Federal IDR 
process. The Departments also proposed amendments to adjust the 
timeframe for submission of offers and payment determination.
    Regarding fee collections, the proposed rule included amendments 
related to the collection of certified IDR entity fees and 
administrative fees. The Departments proposed a reduced administrative 
fee amount for low-dollar disputes to address access concerns by 
certain interested parties that regularly provide services with low-
dollar values. The Departments also proposed reduced administrative fee 
amounts for non-initiating parties in cases of ineligible disputes as 
well as pursuing Federal debt collection of the administrative fee from 
parties that do not pay as required.
    The Departments proposed to amend requirements related to batched 
items and services and bundled payment arrangements. These amendments 
sought to provide clarity in how parties can submit multiple items and 
services as either batched items and services or bundled payment 
arrangements in a single dispute and to provide additional flexibility 
in submitting multiple items and services. The proposed rules also 
proposed to expand upon situations in which timeframes may be waived 
due to extenuating circumstances.
    The Departments received 124 timely comments during both comment 
periods \23\ in response to the proposed rules from a wide variety of 
interested parties, including private citizens; consumer and advocacy 
organizations; employers and other plan sponsors; health information 
technology, health care consulting, and health care staffing companies; 
health care providers and facilities and health systems; health 
insurance issuers; service providers, including third party 
administrators (TPAs) and revenue cycle management organizations; trade 
and professional associations; and researchers. Many commenters 
provided detailed feedback on multiple aspects of the proposed rules 
and in response to various specific comment solicitations included in 
the preamble to the proposed rules and the request for information. 
After reviewing the comments received, the Departments are finalizing 
the 2023 proposed rules, with some changes in response to comments as 
described in more detail later in this preamble, to improve the overall 
functioning of the Federal IDR process.
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    \23\ Comments on the 2023 proposed rules were due by January 2, 
2024. However, the Departments subsequently reopened the comment 
period from January 22, 2024, to February 5, 2024, to provide 
additional time for interested parties to consider and comment on 
any implications of the IDR Process Fees final rules. See 89 FR 3896 
(Jan. 22, 2024).
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II. Overview of the Final Rules--Departments of the Treasury, Labor, 
and HHS

A. Definition of Bundled Payment Arrangement

    Section 9816(c)(3)(B) of the Code, section 716(c)(3)(B) of ERISA, 
and section 2799A-1(c)(3)(B) of the PHS Act state that the Departments 
shall provide that, in the case of items and services which are 
included by a provider or facility as part of a bundled payment, such 
items and services may be part of a single determination. The October 
2021 interim final rules specify that in the case of qualified IDR 
items and services billed by a provider, facility, or provider of air 
ambulance services as part of a bundled payment arrangement, or if a 
plan or issuer makes or denies an initial payment as a bundled payment, 
the qualified IDR items and services may be submitted as part of one 
dispute and are subject to the rules for batched disputes and the 
certified IDR entity fee for single disputes.\24\ The preamble to the 
October 2021 interim final rules describes a bundled payment 
arrangement as an instance in which a group health plan or health 
insurance issuer pays a provider, facility, or provider of air 
ambulance services a single payment for multiple services furnished 
during an episode of care to a single patient.\25\ To clarify how 
certified IDR entities can identify a dispute that includes a bundled 
payment arrangement, the Departments provided a definition for a 
bundled arrangement in the August 2022 Technical Assistance for 
Certified IDR Entities.\26\ The 2023 proposed rules proposed to codify 
the definition set forth in the August 2022 Technical Assistance for 
Certified IDR Entities.
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    \24\ 86 FR 55980, 55994 (October 7, 2021).
    \25\ Id.
    \26\ U.S. Department of Health and Human Services, U.S. 
Department of Labor, and U.S. Department of the Treasury. (August 
2022). Federal Independent Dispute Resolution (IDR) Process Guidance 
for Certified IDR Entities: Technical Assistance for Certified IDR 
Entities, available at <a href="https://www.cms.gov/files/document/TA-certified-independent-dispute-resolution-entities-August-2022.pdf">https://www.cms.gov/files/document/TA-certified-independent-dispute-resolution-entities-August-2022.pdf</a>.
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    Specifically, the Departments proposed to amend 26 CFR 54.9816-3T, 
29 CFR 2590.716-3, and 45 CFR 149.30 by defining the term ``bundled 
payment arrangement'' as an arrangement under which: (1) a provider, 
facility, or provider of air ambulance services bills for multiple 
items or services furnished to a single patient under a single service 
code that represents multiple items or services (for example, a 
diagnostic related group (DRG) code); or (2) a plan or issuer makes an 
initial payment or notice of denial of payment to a provider, facility, 
or provider of air ambulance services under a single service code that 
represents multiple items or services furnished to a single patient 
(for example, a DRG code).
    To further clarify the process for resolving IDR disputes for 
bundled payment arrangements, the Departments proposed to remove the 
language under 26 CFR 54.9816-8T(c)(3)(ii), 29 CFR 2590.716-
8(c)(3)(ii), and 45 CFR 149.510(c)(3)(ii) stating that a bundled 
payment arrangement is subject to the rules for batched disputes. While 
a bundled payment arrangement is, by definition, billed by the same 
provider or group of providers, facility, or same provider of air 
ambulance services and paid by the same group health plan or health 
insurance issuer, not all requirements for batched disputes, including 
those finalized under 26 CFR 54.9816-8(c)(4), 29 CFR 2590.716-8(c)(4) 
and 45 CFR 149.510(c)(4) of these final rules, apply to bundled payment 
arrangements. Therefore, it is not entirely accurate to say that 
bundled payment arrangements are subject to the rules for batched 
disputes.
    The Departments solicited comment on the definition and treatment 
of bundled payment arrangements in the 2023 proposed rules. The 
Departments also solicited comment on examples of service or procedural 
codes other than DRGs that would meet the proposed definition of a 
bundled payment arrangement. After consideration of the comments 
received, and for the reasons described below, the Departments are 
finalizing the definition of the term ``bundled payment arrangement'' 
at 26

[[Page 33904]]

CFR 54.9816-3, 29 CFR 2590.716-3, and 45 CFR 149.30 as proposed. The 
Departments did not receive any comments on the proposed amendment to 
remove the language under 26 CFR 54.9816-8T(c)(3)(ii), 29 CFR 2590.716-
8(c)(3)(ii), and 45 CFR 149.510(c)(3)(ii) stating that a bundled 
payment arrangement is subject to the rules for batched disputes, and 
are finalizing this amendment as proposed.\27\
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    \27\ The 2023 proposed rules included language that would have 
amended Treasury Department temporary regulations issued in July and 
October 2021. Those temporary regulations have since expired and are 
not being amended as proposed in the 2023 proposed rules. 
Corresponding sections of the Department of Labor's interim final 
regulations at 86 FR 36872 and 86 FR 55980 may be relied upon until 
those sections of the previously proposed Treasury regulations are 
published in final form.
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    Commenters generally supported the proposed definition of bundled 
payment arrangement. However, the Departments also received a comment 
opposing the proposed definition, stating that bundled disputes should 
be defined as a single episode of care on a single claim form. This 
commenter stated that bundled payment arrangements are typically for 
contracted services and are not relevant to out-of-network claims 
subject to the No Surprises Act.
    Several commenters also had additional recommendations regarding 
scenarios or types of services that could be defined as a bundled 
payment arrangement. Another commenter recommended that the definition 
of bundling used for the Medicare program be used for the purposes of 
the No Surprises Act. Another commenter suggested that bundled payment 
arrangements under the proposed definition be limited to situations 
where the provider or facility and the plan or issuer mutually agree to 
bundling, or a recognized DRG or all-patients refined diagnosis related 
group (APR DRG) applies to the claim. A few commenters provided 
examples of services or procedural codes other than DRGs that would 
meet the proposed bundled payment arrangement definition. One of these 
commenters stated that Current Procedural Terminology (CPT) and 
Healthcare Common Procedure Coding System (HCPCS) codes, particularly 
for laboratory services, could be used for bundled payment arrangements 
under the proposed definition.
    Even if bundled payment arrangements are most often used for 
contracted services, as the commenter suggested, some qualified IDR 
items and services provided by out-of-network providers will still meet 
the definition of bundled payment arrangement as defined under the 
proposed rules. Section 9816(c)(3)(B) of the Code, section 716(c)(3)(B) 
of ERISA, and section 2799A-1(c)(3)(B) of the PHS Act explicitly 
contemplate bundled payments within the context of the Federal IDR 
process, which is a process that only applies to claims for out-of-
network items and services, and therefore we disagree that bundled 
payment arrangements are not relevant to out-of-network claims subject 
to the No Surprises Act.
    For the comment requesting additional guidance about the types of 
services that may be defined as bundled payment arrangements, the 
Departments believe that existing guidance provided in the August 2022 
Technical Assistance for Certified IDR Entities and in the preamble to 
the 2023 proposed rules provides sufficient examples of bundled payment 
arrangements. The Departments restate the example in the preamble to 
the 2023 proposed rules: if a physician performs bilateral mammography, 
the provider shall report (or for the purpose of the Federal IDR 
process, the provider shall bill) the Current Procedural Terminology 
(CPT) code 77066 (Diagnostic mammography . . . bilateral). The provider 
should not submit CPT code 77065 (Diagnostic mammography . . . 
unilateral) with 2 UOS or CPT code 77065 LT (unilateral left breast 
mammography) plus CPT code 77065 RT (unilateral right breast 
mammography). Under this example, the provider performed multiple 
services, and therefore, under these final rules, if the services are 
billed or reimbursed under one service code (CPT code 77066), all 
services performed under that service code (CPT codes 77065 LT and 
77065 RT) may be considered a bundled payment arrangement for purposes 
of the Federal IDR process.
    The definition of bundled payment arrangements under these final 
rules allows disputes to be bundled by a single CPT code, DRG code, or 
HCPCS code, provided the dispute otherwise complies with such 
definition. We disagree that bundling should be limited to a recognized 
DRG or APR DRG, as doing so would be overly restrictive and would limit 
initiating parties' ability to submit bundled disputes. The Departments 
favor broader criteria for bundling to increase the number of claims 
eligible to be submitted as a bundled payment arrangement. Further, the 
Departments disagree that they should adopt the Medicare definition of 
bundled payments for purposes of submitting claims, because there are 
multiple definitions that exist in guidance and regulation that rely on 
a defined episode of care, single illness or condition, or course of 
treatment, which the Departments proposed as a method of batching at 26 
CFR 54.9816-8(c)(4)(i)(C)(2), 29 CFR 2590.716-8(c)(4)(i)(C)(2), and 45 
CFR 149.510(c)(4)(i)(C)(2).\28\ Additionally, the Departments decline 
to finalize a rule limiting the use of bundled payment arrangements to 
situations where the provider and the plan or issuer mutually agree to 
the use of bundling, as a commenter suggested. Such a limitation 
creates an administrative barrier to submitting a bundled dispute and 
could disincentivize parties from using or relying on bundled payment 
arrangements, which could decrease the accessibility of the Federal IDR 
process for bundled payment arrangements.
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    \28\ For definitions of bundled payments, see <a href="https://www.cms.gov/priorities/innovation/key-concepts/bundled-payments">https://www.cms.gov/priorities/innovation/key-concepts/bundled-payments</a> and 
<a href="https://www.cms.gov/priorities/innovation/innovation-models/bundled-payments">https://www.cms.gov/priorities/innovation/innovation-models/bundled-payments</a>. For definitions of episode(s) of care, see 42 CFR 414.1305 
``Episode payment model'' and 42 CFR 510.2 ``Episode of care (or 
Episode).''
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B. Use of CARCs and RARCs

1. Existing Payment Communication Practice and Requirements
    As described in the preamble to the 2023 proposed rules, the Health 
Insurance Portability and Accountability Act of 1996 (HIPAA) mandated 
the adoption of electronic standards for certain health care 
transactions, including health care payment and remittance advice.\29\ 
When remittance advice is transmitted electronically, it is commonly 
referred to as an electronic remittance advice or ERA.\30\ All ERAs 
must comply with the Accredited Standards Committee (ASC) X12 835 
transaction standard adopted by HHS under 45 CFR 162.1602.
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    \29\ 88 FR 75744, 75759 (November 3, 2023). The ASC X12N 835 
Version 5010 (835 transaction), adopted at 45 CFR 162.1602, is the 
current HIPAA standard that plans and issuers must use to 
electronically transmit explanations of benefits (EOBs) or 
remittance advice information to providers and facilities.
    \30\ An ERA explains how a plan or issuer has adjusted claim 
charges based on factors like contract agreements, secondary payers, 
benefits coverage, and expected cost sharing. Centers for Medicare & 
Medicaid Services. (June 16, 2022). Health Care Payment and 
Remittance Advice and Electronic Funds Transfer, available at 
<a href="https://www.cms.gov/Regulations-and-Guidance/Administrative-Simplification/Transactions/HealthCarePaymentandRemittanceAdviceandElectronicFundsTransfer">https://www.cms.gov/Regulations-and-Guidance/Administrative-Simplification/Transactions/HealthCarePaymentandRemittanceAdviceandElectronicFundsTransfer</a>.
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    The ASC X12 835 implementation guide mandates the use of CARCs and 
RARCs to communicate remittance information (as opposed to any other 
code systems, such as proprietary codes developed by specific plans and

[[Page 33905]]

issuers).\31\ CARCs explain why a claim or service line was paid 
differently than it was billed.\32\ RARCs provide additional 
explanations for a remittance. RARCs are either ``supplemental,'' 
meaning that they provide additional explanation for an adjustment 
already described by a CARC, or ``informational,'' meaning they convey 
information about remittance processing and are not related to a 
specific adjustment or CARC.\33\ The lists of approved CARCs and RARCs 
are maintained by separate committees (the CARC Committee and the RARC 
Committee) designated by HHS to review requests to add, remove, or 
modify existing CARCs and RARCs. The HIPAA operating rule adopted at 45 
CFR 162.1603(a)(4) requires plans and issuers to use a uniform set of 
CARCs and RARCs for defined business scenarios.\34\ Any interested 
party can use publicly available forms to submit requests for new or 
modified CARCs and RARCs and accompanying explanations to the 
respective committees on a rolling basis. Each committee meets on a 
regularly scheduled, periodic basis to discuss proposed new CARCs and 
RARCs or modifications of existing CARCs and RARCs with the sponsors of 
such changes and determine whether to approve or deny the recommended 
change or new CARC or RARC.\35\ Updated lists of approved CARCs and 
RARCs, along with an updated list of approved CARC and RARC 
combinations and business scenarios, are published three times each 
year.\36\
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    \31\ CARCs and RARCs are required by the ASC X12 835 transaction 
standard and are not currently required to be used on paper 
remittance advice.
    \32\ X12. (Updated November 1, 2025). Claim Adjustment Reason 
Codes. <a href="https://x12.org/codes/claim-adjustment-reason-codes">https://x12.org/codes/claim-adjustment-reason-codes</a>.
    \33\ X12. (Updated July 1, 2025). Remittance Advice Remark 
Codes. <a href="https://x12.org/codes/remittance-advice-remark-codes">https://x12.org/codes/remittance-advice-remark-codes</a>.
    \34\ CAQH CORE. (June 2012). Phase III 360 CORE Uniform Use of 
CARCs and RARCs (835) Rule, Version 3.0.0, available at <a href="https://43908627.fs1.hubspotusercontent-na1.net/hubfs/43908627/CARCsRARCs_835_Rule.pdf">https://43908627.fs1.hubspotusercontent-na1.net/hubfs/43908627/CARCsRARCs_835_Rule.pdf</a>.
    \35\ See Maintenance Request Form, available at <a href="https://x12.org/codes/remittance-advice-remark-codes">https://x12.org/codes/remittance-advice-remark-codes</a> (for RARCs) and <a href="https://x12.org/codes/claim-adjustment-reason-codes">https://x12.org/codes/claim-adjustment-reason-codes</a> (for CARCs). See also 
CMS, Health Care Payment and Remittance Advice and Electronic Funds 
Transfer, Claim Adjustment Reason Codes and Remittance Advice Remark 
Codes, available at <a href="https://www.cms.gov/priorities/key-initiatives/burden-reduction/administrative-simplification/transactions/health-care-payment-remittance-advice-electronic-funds-transfer">https://www.cms.gov/priorities/key-initiatives/burden-reduction/administrative-simplification/transactions/health-care-payment-remittance-advice-electronic-funds-transfer</a>.
    \36\ CAQH CORE. (n.d). Operating Rules, Keeping Up with the Core 
Code Combinations, available at <a href="https://www.caqh.org/core/operating-rules">https://www.caqh.org/core/operating-rules</a>.
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    The RARC Committee has approved a set of specific RARCs that convey 
information related to the No Surprises Act, including which provisions 
apply to a claim, how cost sharing was calculated, and whether a 
payment for a claim was an initial or final payment.\37\ While these 
RARCs are currently available for use by plans and issuers, the No 
Surprises Act-specific RARCs do not address all required QPA 
disclosures or all data elements relevant to whether a payment dispute 
arising from an item or service included on a remittance advice is 
eligible for the Federal IDR process. Furthermore, the current 
standards and operating rules that govern ERA transactions under HIPAA 
do not include specific requirements that dictate which combinations of 
CARCs and RARCs must be used to communicate claim adjudication 
information in business scenarios anticipated by the No Surprises 
Act.\38\
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    \37\ X12. (Updated July 1, 2025). Remittance Advice Remark 
Codes. <a href="https://x12.org/codes/remittance-advice-remark-codes">https://x12.org/codes/remittance-advice-remark-codes</a> 
(complete list of approved RARC codes including No Surprises Act-
specific codes); and Centers for Medicare & Medicaid Services. 
(March 1, 2022). Remittance Advice Remark Codes Related to the No 
Surprises Act, available at <a href="https://www.cms.gov/CCIIO/Programs-and-Initiatives/Other-Insurance-Protections/CAA-NSA-RARC-Codes.pdf">https://www.cms.gov/CCIIO/Programs-and-Initiatives/Other-Insurance-Protections/CAA-NSA-RARC-Codes.pdf</a> 
(unofficial reference list of No Surprises Act-specific RARC codes).
    \38\ The ASC X12 835 transaction standard requires health plans 
to convey information about the adjudication of a claim using CARCs 
and RARCs. The Phase III 360 CORE Uniform Use of CARCs and RARCs 
(835) Rule, adopted at 45 CFR 162.1603, requires plans to use 
specified combinations of CARCs and RARCs in certain business 
scenarios. CAQH CORE. (June 2012). Phase III 360 CORE Uniform Use of 
CARCs and RARCs (835) Rule, Version 3.0.0, available at <a href="https://43908627.fs1.hubspotusercontent-na1.net/hubfs/43908627/CARCsRARCs_835_Rule.pdf">https://43908627.fs1.hubspotusercontent-na1.net/hubfs/43908627/CARCsRARCs_835_Rule.pdf</a>.
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2. Requiring CARCs and RARCs To Improve Communication Between Parties
    In the preamble to the 2023 proposed rules, the Departments 
identified communication gaps between plans or issuers and providers 
that contribute to inefficiencies in resolving disputes in the Federal 
IDR process including, but not limited to: (1) whether the consumer 
protections against balance billing and out-of-network cost sharing 
under the No Surprises Act apply to an item or service; (2) how cost 
sharing and the out-of-network rates are determined (that is, through 
an All-Payer Model Agreement, specified State law, or the Federal 
rules); (3) how and with whom to initiate open negotiation; and (4) 
which items or services eligible for the Federal IDR process can be 
batched or bundled into one dispute.
    Under section 9816(a)(2)(B)(ii) of the Code, section 716(a)(2)(B) 
of ERISA, and section 2799A-1(a)(2)(B)(ii) of the PHS Act, the 
Departments are directed to establish through rulemaking the 
information that a plan or issuer must share with a provider or 
facility when making a determination of the QPA.\39\ Under section 9833 
of the Code, section 734 of ERISA, and section 2792 of the PHS Act, the 
Departments are authorized to issue such regulations as may be 
necessary and appropriate to carry out the provisions of chapter 100 of 
the Code, part 7 of ERISA, and title XXVII of the PHS Act, 
respectively, including the provisions directing the Departments to 
establish the Federal IDR process.
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    \39\ The No Surprises Act does not include the same language 
addressing disclosures to providers of air ambulance services. 
However, the July 2021 interim final rules implemented the statute's 
cost-sharing requirements for air ambulance services by requiring 
that plans and issuers base any coinsurance and deductible for air 
ambulance services furnished by a nonparticipating provider of air 
ambulance services on the lesser of the QPA or the billed amount for 
the services. 86 FR 36884 (July 13, 2021). Therefore, the July 2021 
interim final rules also applied the requirement to make disclosures 
regarding the QPA for providers of air ambulance services. As stated 
in the preamble to the July 2021 interim final rules, the 
Departments recognize that providers of air ambulance services 
subject to the surprise billing rules (as well as providers and 
emergency facilities) need transparency regarding how the QPA was 
calculated to inform the open negotiation process, the decision 
whether to initiate the Federal IDR process, and the amount of the 
offer to submit. 86 FR 36898 (July 13, 2021).
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    In the 2023 proposed rules, the Departments proposed new disclosure 
rules at 26 CFR 54.9816-6A, 29 CFR 2590.716-6A, and 45 CFR 149.100. 
These proposals would require plans and issuers to use CARCs and RARCs, 
as specified in guidance issued by the Departments, or as required 
under any applicable adopted standards and operating rules under 45 CFR 
part 162, to communicate information related to whether a claim for an 
item or service furnished by an entity that does not have a direct or 
indirect contractual relationship with the plan or issuer for the 
furnishing of such item or service under the plan or coverage is 
subject to the provisions of 26 CFR 54.9816 and 54.9817; 29 CFR 
2590.716 and 2590.717; or 45 CFR part 149, subpart B, E, or F.
    The Departments sought comment on the CARC and RARC proposal. After 
reviewing comments, and in light of the considerations discussed in 
this section of these final rules, the Departments are finalizing the 
CARC and RARC proposal with minor modifications.
a. In General
    Many commenters supported the proposal to require plans and issuers 
to use CARCs and RARCs to standardize communication between plans and 
issuers and providers early in the claims process for out-of-network 
items and

[[Page 33906]]

services. Several commenters noted that some plans and issuers 
currently use No Surprises Act-related RARCs, but usage is not 
consistent across all plans and issuers or in every circumstance in 
which they apply. Many commenters stated that the proposal would reduce 
the number of ineligible disputes submitted to the Federal IDR process 
by allowing parties to more easily identify ineligible claims, 
including, for example, allowing providers to automate some aspects of 
claims analysis, increasing the speed with which providers can review 
remittances and determine eligibility for the Federal IDR process 
compared to current manual review processes. One commenter highlighted 
that the proposal would provide more information for initiating parties 
and certified IDR entities, which would improve the certified IDR 
entity's ability to determine a dispute's eligibility.
    The Departments agree with commenters who suggested that the CARC 
and RARC requirement will facilitate communication between plans or 
issuers and providers, thereby reducing the number of ineligible 
disputes submitted to the Federal IDR process and thus allowing 
certified IDR entities to focus resources more efficiently. In 
addition, the use of RARCs and CARCs will reduce the need for providers 
to engage in resource-intensive manual examination of paper or other 
non-standardized eligibility information.
    However, a few commenters opposed the CARC and RARC proposal. One 
of these commenters stated that because only a few of the currently 
available RARCs specific to the No Surprises Act relate to how claims 
are paid and negotiated, requiring their use would not improve 
providers' ability to determine whether they may initiate open 
negotiation and the Federal IDR process. Another commenter noted that 
disclosures provided separately from the electronic transaction are 
often more detailed than what is likely to be communicated via CARCs 
and RARCs, and that requiring CARCs and RARCs to be added to a 
remittance advice provided with the initial payment or notice of denial 
of payment would be redundant with what plans are already providing in 
other steps of the Federal IDR process.
    The Departments have determined that CARCs and RARCs provided on 
remittance advice as required under these final rules will help to 
address communication challenges between plans or issuers and 
providers, even when information that could be conveyed by a CARC or 
RARC may also be available through another mechanism or at a later 
point in the payment dispute process. Specifically, using a CARC or 
RARC to convey information in ASC X12 835 transactions, prior to the 
open negotiation period, could improve or replace later communications 
or render them entirely unnecessary. For example, the Departments are 
aware that because the ASC X12 835 electronic transaction standard does 
not accommodate the QPA disclosures that plans and issuers are required 
to provide under 26 CFR 54.9816-6(d), 29 CFR 2590.716-6(d), and 45 CFR 
149.140(d), plans and issuers generally provide all required 
disclosures by an alternate mechanism, such as using email or sending 
in paper form. Providers therefore receive disclosures separately from, 
and often much later than, electronic transactions and have reported 
challenges linking the disclosures to the correct transaction.\40\ 
However, requiring certain disclosure information to be provided using 
a CARC or RARC means that information will be conveyed to the provider 
as part of the ASC X12 835 transaction. A CARC or RARC provided in a 
remittance advice that clearly and accurately identifies an item or 
service as being eligible or ineligible for the Federal IDR process 
could remove delays in initiating the open negotiation period or 
prevent a dispute over payment for that item or service from 
incorrectly proceeding to the Federal IDR process.\41\
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    \40\ See FAQs About Consolidated Appropriations Act, 2021 
Implementation Part 69 (January 14, 2025), Q3, available at <a href="https://www.dol.gov/sites/dolgov/files/ebsa/about-ebsa/our-activities/resource-center/faqs/aca-part-69.pdf">https://www.dol.gov/sites/dolgov/files/ebsa/about-ebsa/our-activities/resource-center/faqs/aca-part-69.pdf</a> and <a href="https://www.cms.gov/files/document/faqs-part-69.pdf">https://www.cms.gov/files/document/faqs-part-69.pdf</a>.
    \41\ The use by a plan or issuer of a CARC or RARC that conveys 
that an item or service is ineligible for the Federal IDR process is 
not a dispositive determination of eligibility and would not prevent 
a certified IDR entity from determining that the item or service is 
eligible through the eligibility review process finalized in these 
final rules. See 26 CFR 54.9816-8(c)(2), 29 CFR 2590.716-8(c)(2), 
and 45 CFR 149.510(c)(2) and section II.E.1.b of this preamble.
---------------------------------------------------------------------------

    In other cases, CARCs and RARCs may provide information prior to 
the initiation of the Federal IDR process that is not available through 
other mechanisms and could be used to prevent the initiation of an 
incorrectly batched dispute. For example, as described elsewhere in 
this preamble, the Departments are finalizing requirements that certain 
plans and issuers provide specific data elements in the Federal IDR 
registry established under 26 CFR 54.9816-9, 29 CFR 2590.716-9, and 45 
CFR 149.530, such as plan type or whether a self-insured plan has 
properly effectuated an election to opt in to a specified State law or 
an All-Payer Model Agreement under section 1115A of the Social Security 
Act. Such data will be provided at the level of the plan or coverage. 
By contrast, similar information could be provided through CARCs and 
RARCs for each specific line item on a remittance advice and convey 
information specific to a particular item or service. Line item level 
details are relevant to disputes in which a specified State law or All-
Payer Model Agreement applies to certain items and services and the 
Federal IDR process applies to others.
    The Departments clarify that the requirement to use specified CARCs 
and RARCs under these final rules will be in addition to the disclosure 
requirements at 26 CFR 54.9816-6(d), 29 CFR 2590.716-6(d), and 45 CFR 
149.140(d) and Federal IDR registry requirements at 26 CFR 54.9816-9, 
29 CFR 2590.716-9, and 45 CFR 149.530. To the extent that a CARC or 
RARC could be used to fulfill a separate disclosure requirement, such 
as the requirements at 29 CFR 2590.716-6(d) and 45 CFR 149.140(d), the 
Departments will issue future guidance to identify how and when a 
specific code can be used to meet a particular requirement.
b. Application to Items and Services Not Subject to No Surprises Act 
Surprise Billing Requirements
    The Departments also proposed in the 2023 proposed rules that the 
requirements under 26 CFR 54.9816-6A, 29 CFR 2590.716-6A, and 45 CFR 
149.100 relating to CARCs and RARCs would apply to plans and issuers 
when sending any paper or electronic remittance advice to entities with 
which they do not have a direct or indirect contractual relationship, 
including for items and services to which the No Surprises Act surprise 
billing requirements do not apply. The Departments proposed this 
approach so that CARCs and RARCs could be used to convey when the No 
Surprises Act does not apply to a particular item or service and reduce 
the submission of ineligible disputes to the Federal IDR process.
    Several commenters supported this proposal, stressing the 
importance of understanding when the No Surprises Act does not apply to 
a particular item or service to avoid submission of ineligible disputes 
to the Federal IDR process. One commenter highlighted that requiring a 
RARC that identifies an item or service as being ineligible for a State 
or Federal balance billing protection would significantly and 
immediately reduce the number of

[[Page 33907]]

ineligible dispute initiations, allowing certified IDR entities to 
address future payment disputes more efficiently, while another 
commenter suggested the proposal would reduce financial and 
administrative burdens associated with identifying whether balance 
billing is prohibited. On the other hand, a small number of commenters 
indicated that applying the provision to out-of-network claims for 
items and services that are not subject to the surprise billing 
provisions in the No Surprises Act would require additional time to 
implement and could cause provider confusion and increase operational 
burden for plans and issuers.
    The Departments acknowledge these final rules may require some 
plans and issuers to implement new processes to include CARCs and RARCs 
related to the No Surprises Act on remittance advice but have 
determined that there is a critical need to provide this information to 
improve the functioning of the Federal IDR process. Just as it is 
important for providers to understand when an item or service is 
subject to the surprise billing protections under the No Surprises Act, 
it is equally important to understand when an item or service is not 
subject to these protections, so that parties can take appropriate 
steps to resolve payment issues and avoid submission of ineligible 
disputes to the Federal IDR process. Therefore, the Departments are 
finalizing this aspect of the proposed requirements as proposed.
    In the preamble to the 2023 proposed rules, the Departments stated 
that, because direct billing of patients for an amount greater than the 
applicable in-network cost-sharing requirement is largely limited to 
items and services to which the No Surprises Act does not apply, the 
2023 proposed rules would not require plans and issuers to provide 
CARCs and RARCs on remittance advice provided directly to participants, 
beneficiaries, and enrollees.\42\ However, the Departments sought 
comment on whether a plan or issuer should generate a remittance advice 
that can be obtained upon request by the provider when the plan or 
issuer makes a payment directly to a participant, beneficiary, or 
enrollee, and whether the proposed requirement to use CARCs and RARCs 
to convey No Surprises Act-specific information should apply in these 
circumstances.
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    \42\ See 88 FR 75744, 75762 and 75763 (November 3, 2023). While 
a plan or issuer should not send payment for items and services that 
are subject to the surprise billing provisions of the No Surprises 
Act to any individual or entity other than the provider, the 
Departments acknowledge there may be circumstances in which a plan 
or issuer initially determines that an item or service is not 
subject to the surprise billing provisions of the No Surprises Act 
and sends payment and a corresponding ERA to a participant, 
beneficiary, or enrollee, but subsequently, upon the receipt of new 
or updated information, revises that assessment (for example, when 
an in-network facility submits a claim for a non-emergency service 
after the plan or issuer has processed an out-of-network provider 
claim for the same item or service). In these cases, the plan or 
issuer would be required to provide an updated remittance advice to 
the provider that includes any relevant required CARCs or RARCs.
---------------------------------------------------------------------------

    The Departments did not receive any comments on this provision in 
the 2023 proposed rules. These final rules do not require plans and 
issuers to use CARCs and RARCs on remittance advice for payments made 
directly to participants, beneficiaries, or enrollees--including if the 
remittance advice is requested by the provider that furnished the item 
or service for which payment is made. The proposed regulation text has 
been modified to make clear that the provision applies when providing 
remittance advice to an entity ``(other than a participant, 
beneficiary, or enrollee)'' that does not have a contractual 
relationship with the plan or issuer.
c. Use of Guidance
    The Departments proposed that certain procedural aspects of the 
CARC and RARC requirement would be implemented through guidance, 
including the specific CARCs and RARCs that plans and issuers would be 
required to use to satisfy the disclosure requirements under proposed 
26 CFR 54.9816-6A, 29 CFR 2590.716-6A, and 45 CFR 149.100.\43\ The 
Departments are finalizing this part of the proposal as proposed. 
Accordingly, these final rules establish the general requirement that 
plans and issuers use CARCs and RARCs, in the manner and timeframe 
specified in guidance, to communicate information about whether an item 
or service identified on a claim is or is not subject to the surprise 
billing requirements under the No Surprises Act. Future guidance will 
identify the specific CARCs and RARCs to be used in particular 
circumstances, which, as discussed below in section II.B.2.e of this 
preamble, when surprise billing protections do apply, may include use 
of CARCs and RARCs to communicate relevant procedural or administrative 
information related to application of the surprise billing protections 
to the items or services at issue. Future guidance will also provide 
any administrative and technical instructions necessary to facilitate 
the use of mandated CARCs and RARCs in all paper or electronic 
remittance advice transactions to providers that do not have a 
contractual relationship with the plan or issuer. Approval of new CARCs 
and RARCs or modifications to existing CARCs and RARCs, including the 
existing list of No Surprises Act-related RARCs, will be subject to the 
existing CARC Committee and RARC Committee processes, as mentioned 
above.
---------------------------------------------------------------------------

    \43\ Neither the proposal nor these final rules alter HHS' 
authority under HIPAA to implement future guidance for ERA or to 
adopt new or modified standards or operating rules in accordance 
with Title XI Part C--Administrative Simplification of the Social 
Security Act.
---------------------------------------------------------------------------

    Most commenters generally supported the use of guidance to 
implement the proposal. Some of these commenters also provided specific 
recommendations for how the Departments could ensure future guidance 
would be clear and effective. Commenters recommended that any guidance 
should include explicit timelines for compliance and provide clear 
direction for how specified CARCs and RARCs must be used. As discussed 
in section II.B.2.g of this preamble, several commenters requested that 
guidance address potential non-compliance, including describing 
oversight mechanisms and penalties and providing contact information 
for filing complaints against parties that are non-compliant with the 
CARC and RARC requirement. As discussed in more detail in section 
II.H.1 of this preamble, several commenters emphasized the importance 
of implementing the CARC and RARC requirements as quickly as possible.
    A few commenters recommended that the Departments use notice-and-
comment rulemaking, rather than guidance, to change existing, or 
identify new, CARCs and RARCs. For example, one commenter stated that 
plans and issuers could provide feedback through rulemaking regarding 
the initial development of technically and operationally complex 
requirements, but once initial requirements were reviewed and agreed 
upon by industry, future updates could be issued via guidance. Another 
commenter recommended rulemaking to allow interested parties to comment 
on specific challenges that could be raised by individual CARCs and 
RARCs.
    The Departments have determined that guidance, rather than notice-
and-comment rulemaking, is appropriate for providing the technical and 
operational instruction needed to implement this provision. This 
approach will provide necessary flexibility, enabling the Departments 
to better respond to evolving needs and circumstances, including the 
flexibility to discontinue specification of certain CARCs and RARCs 
should the information they communicate become readily available to 
providers through a different mechanism or otherwise become 
unnecessary. Further, as discussed in

[[Page 33908]]

the preamble to the 2023 proposed rules, this approach mirrors the 
longstanding framework in which interested parties may submit requests 
to add, remove, or modify existing CARCs and RARCs, but updates to the 
lists of approved CARCs and RARCs and the required CARC and RARC code 
combinations provided for in the HIPAA-mandated operating rule are 
issued outside of the notice-and-comment rulemaking process.\44\
---------------------------------------------------------------------------

    \44\ See 45 CFR 162.1603(a)(3-4), and Phase III CORE 360 Uniform 
Use of Claim Adjustment Reason Codes and Remittance Advice Remark 
Codes (835) Rule, available at <a href="https://www.caqh.org/core/operating-rules">https://www.caqh.org/core/operating-rules</a> (outlining the process for maintaining CORE-defined CARC, RARC 
& Claim Adjustment Group Code Combinations).
---------------------------------------------------------------------------

d. Technical and Operational Considerations
    The Departments solicited comment on circumstances in which a plan 
or issuer would be unable to determine whether an item or service 
included on a remittance advice is, or is not, subject to the Federal 
IDR process at the time the remittance advice is issued to a provider, 
facility, or provider of air ambulance services. One commenter 
identified a scenario in which a provider submits a claim, but the 
related facility claim containing the information needed to determine 
applicability of the No Surprises Act is submitted later. The 
Departments understand that plans and issuers sometimes need to adjust 
remittance advice (for example, to reflect corrections or new 
information that could impact payment) and anticipate that plans and 
issuers will apply existing processes \45\ to modify remittance advice 
as needed to ensure compliance with the CARC and RARC requirement being 
finalized in these final rules. Because the Departments anticipate 
corrections will be needed infrequently, the Departments do not expect 
making corrections with ERA using CARCs and RARCs as required by these 
final rules to be overly burdensome on plans or issuers.
---------------------------------------------------------------------------

    \45\ See, for example, CAQH, Operating Rules, available at 
<a href="https://www.caqh.org/core/operating-rules">https://www.caqh.org/core/operating-rules</a>.
---------------------------------------------------------------------------

    The Departments also sought comment on the technical and 
operational steps that plans and issuers would need to take to 
initially implement new No Surprises Act-specific CARCs and RARCs, 
including plans and issuers that do not currently use CARCs and RARCs, 
or that are currently able to accommodate only one CARC and RARC 
combination per line item. Several commenters noted that many plans and 
issuers already use CARCs and RARCs, albeit inconsistently for No 
Surprises Act-specific RARCs, and are familiar with the use of such 
codes generally, and suggested that implementation of the proposed CARC 
and RARC requirement would not be technically or operationally 
difficult. However, several other commenters noted that ERAs have 
limited space to enter additional data, including CARCs and RARCs. In 
many cases, HIPAA-mandated standards for electronic data interchange 
already require plans and issuers to include specific code combinations 
on ERAs, further limiting the available space for additional No 
Surprises Act-specific CARCs and RARCs. Commenters explained that a 
plan's current system might only accommodate a single RARC per line 
item; in cases when an existing requirement already mandates the use of 
a CARC or RARC to describe, for example, a payment adjustment, the plan 
may not be able to accommodate an additional No Surprises Act-related 
CARC or RARC. As a partial solution, a few commenters requested that 
the Departments design CARCs and RARCs to convey multiple data elements 
in a single code and avoid a scenario where plans and issuers would 
have to combine multiple codes to convey required information related 
to the No Surprises Act.
    The Departments have determined that because all plans and issuers 
that provide ERA transactions that are subject to the HIPAA 
Administrative Simplification requirements are required to use CARCs 
and RARCs, most plans and issuers already have the capacity to 
implement the CARC and RARC requirement. However, as stated in the 
preamble to the 2023 proposed rules, the Departments acknowledge that 
implementing any new requirements affecting remittance advice, 
including the CARC and RARC requirement, may increase burden and pose 
technical and operational challenges for some plans and issuers, 
particularly those whose systems do not currently accommodate multiple 
CARCs and RARCs per line item. In light of the comments described 
above, the Departments will consider providing technical direction in 
future guidance to facilitate implementation of the CARC and RARC 
requirements on ERA with limited space available for data elements. As 
discussed in the 2023 proposed rules \46\ and section II.H.1 of this 
preamble, the Departments are aware that after guidance is issued 
identifying the specific CARCs and RARCs required to be used, plans and 
issuers will need additional time to implement the CARC and RARC 
requirement. The Departments will establish an appropriate 
applicability date in guidance, as further discussed in section II.H. 
of these final rules. Plans and issuers will not be required to use 
CARCs and RARCs under these final rules until such date as provided for 
in future guidance.
---------------------------------------------------------------------------

    \46\ 88 FR 75744, 75762 (November 3, 2023).
---------------------------------------------------------------------------

e. Additional CARCs and RARCs
    As described in section II.B.1 of this preamble, the RARC Committee 
has approved a set of informational RARCs that plans and issuers can 
use to convey information about the No Surprises Act when providing 
remittances to providers. In the preamble to the 2023 proposed rules, 
the Departments solicited comment on whether, and if so, what 
information related to the No Surprises Act's surprise billing 
provisions that is not conveyed in the existing RARCs would be helpful 
to convey through the creation of additional RARCs. Many commenters 
provided feedback on the existing No Surprises Act-related RARCs, as 
well as recommendations for potential new CARCs and RARCs.
    As noted in section II.B.2 of this preamble, multiple commenters 
noted that plans and issuers have not adopted a consistent approach to 
using RARCs to provide information related to the No Surprises Act. 
Given this lack of consistency, one commenter recommended that the 
Departments undertake an inventory of the current RARC list before 
introducing new CARCs and RARCs specific to the No Surprises Act. 
Another commenter requested utilizing a single, consistent list of 
CARCs and RARCs that provide a common language for understanding 
remittance information, regardless of payer. A few other commenters 
recommended that, because CARCs and RARCs are often generic, requiring 
a ``plain language'' explanation of the specific reason for a claim 
denial would benefit all parties.
    Other commenters provided feedback on specific, current RARCs. 
Several commenters recommended that the Departments specify in guidance 
that plans and issuers must use one of two ``mutually exclusive'' 
RARCs: N871, which identifies an initial payment that was calculated 
based on a specified State law in accordance with the No Surprises Act; 
or N859, which identifies a claim that was processed subject to the No 
Surprises Act and that is eligible for Federal dispute resolution. 
Another commenter recommended requiring N883 to identify an item or 
service that

[[Page 33909]]

was processed according to State law.\47\ Several commenters stated 
that the RARC Committee should deactivate RARC N830 and the Departments 
should not include it in future guidance.\48\ Commenters identified 
N830 as the most common No Surprises Act-related RARC being provided by 
plans and issuers, but explained that N830 is problematically vague 
because it does not distinguish between claims that are subject to 
State dispute resolution processes and claims subject to the Federal 
IDR process. These commenters stated that N830 therefore does not 
provide meaningful guidance to providers and facilities seeking to 
determine the appropriate State or Federal venue for their payment 
dispute. Another commenter recommended deactivating several codes that 
distinguish between emergency, non-emergency, and air ambulance 
services, because providers are already aware of the services that they 
render and can typically identify more granular information about 
specific items and services from other information on the 
remittance.\49\
---------------------------------------------------------------------------

    \47\ The RARC text associated with N883 is: ``Alert: Processed 
according to State law.'' See X12, ``Remittance Advice Remark 
Codes,'' available at <a href="https://x12.org/codes/remittance-advice-remark-codes">https://x12.org/codes/remittance-advice-remark-codes</a>.
    \48\ The RARC text associated with N830 is: ``Alert: The 
charge[s] for this service was processed in accordance with Federal/
State, Balance Billing/No Surprise Billing regulations. As such, any 
amount identified with OA, CO, or PI cannot be collected from the 
member and may be considered provider liability or be billable to a 
subsequent payer. Any amount the provider collected over the 
identified PR amount must be refunded to the patient within 
applicable Federal/State timeframes. Payment amounts are eligible 
for dispute under any Federal/State documented appeal/grievance 
process(es).'' See CMS, ``Remittance Advice Remake Codes Related to 
the No Surprises Act,'' available at <a href="https://www.cms.gov/CCIIO/Programs-and-Initiatives/Other-Insurance-Protections/CAA-NSA-RARC-Codes.pdf">https://www.cms.gov/CCIIO/Programs-and-Initiatives/Other-Insurance-Protections/CAA-NSA-RARC-Codes.pdf</a>.
    \49\ In the case of payments that are not on a fee-for-service 
basis, plans and issuers are required to calculate a QPA for each 
item or service according to the requirements at 29 CFR 2590.716-
6(b)(2)(iii) and 45 CFR 149.140(b)(2)(iii) and disclose the QPA for 
each item or service involved in an initial payment or notice of 
denial of payment according to the requirements at 29 CFR 2590.716-
6(d)(1)(i) and 45 CFR 149.140(d)(1)(i).
---------------------------------------------------------------------------

    Many commenters also recommended creating new RARCs to communicate 
information that cannot be conveyed using existing RARCs. Commenters 
generally recommended creating RARCs that would convey the following 
information about a claim: (1) identifying when State or Federal 
surprise billing protections do not apply; (2) when surprise billing 
protections do apply, the applicable dispute resolution process or 
payment amount (such as the Federal IDR process; processes or amounts 
governed by a specified State law, including whether a self-insured 
plan has opted into a specified State law; or an amount determined by 
an All-Payer Model Agreement); and (3) plan type (such as a fully or 
self-insured ERISA plan, a non-Federal governmental plan, an FEHB plan, 
or individual health insurance coverage). A few commenters also 
recommended that the Departments require that plans and issuers convey 
information about the QPA using RARCs, such as a RARC that specifies 
when the allowed amount is the QPA or one or more RARCs that convey the 
QPA disclosures required under 29 CFR 2590.716-6(d) and 45 CFR 
149.140(d), including the QPA itself. One commenter requested that the 
Departments require plans and issuers providing a payment in the form 
of a bundled payment to use CARCs and RARCs to disclose the application 
of a bundling methodology and identify each item or service included in 
such bundling, to ensure that plans and issuers provide a QPA for each 
item or service in a bundled payment.\50\
---------------------------------------------------------------------------

    \50\ In the case of payments that are not on a fee-for-service 
basis (such as bundled or capitated payments), plans and issuers are 
required to calculate a QPA for each item or service according to 
the requirements at 29 CFR 2590.716-6(b)(2)(iii) and 45 CFR 
149.140(b)(2)(iii) and disclose the QPA for each item or service 
involved in an initial payment according to the requirements at 29 
CFR 2590.716-6(d)(1)(i) and 45 CFR 149.140(d)(1)(i).
---------------------------------------------------------------------------

    The Departments also solicited comment regarding any experiences 
with State-level CARC and RARC requirements related to State surprise 
billing laws. One commenter emphasized the importance of considering 
State-Federal interactions when developing guidance mandating plans and 
issuers use specific CARCs and RARCs to avoid conflicts with State 
requirements.
    The Departments agree with commenters who recommend undertaking a 
thorough inventory of the existing No Surprises Act-related RARCs as 
part of the process for developing future guidance and recognize the 
importance of considering potential interactions with State-level code 
requirements. The Departments also acknowledge that it may be necessary 
to supplement the existing RARC list with new RARCs to comprehensively 
address whether and how the No Surprises Act applies to items and 
services included on a remittance advice. The Departments will take the 
commenters' recommendations into consideration when developing future 
guidance.
f. Applicability to Paper and Electronic Remittance Advice
    The Departments proposed that plans and issuers be required to 
include CARCs and RARCs on ``any paper or electronic remittance 
advice'' provided to an out-of-network provider, facility, or provider 
of air ambulance services, and requested feedback on whether a more 
general term, such as ``any remittance advice'' would be helpful in 
characterizing the types of communications accompanying payments for 
items and services. A few commenters supported the use of the more 
general term ``any remittance advice'' instead of ``any paper or 
electronic remittance advice,'' provided that plans and issuers would 
retain the flexibility to choose whether to use paper or electronic 
communication. One commenter requested that plans and issuers retain 
the flexibility to provide all required disclosures on ``separate page 
disclosures,'' as they explained is commonly done today. Another 
commenter requested that the Departments apply the proposed CARC and 
RARC requirements to ERA only, excepting plans and issuers from the 
requirements when they issue a paper remittance advice or EOB. This 
commenter stated that paper remittance advice is generally prepared for 
the benefit of plan members or for providers who do not use HIPAA 
electronic transactions and do not generally furnish items and services 
that are subject to the No Surprises Act. A few commenters cited the 
added provider burden associated with paper remittance advice and 
requested that the Departments encourage the use of ERA. By contrast, 
other commenters supported the Departments' proposal to apply the 
requirements to paper and ERA and highlighted the importance of 
standardizing the communication between plans and issuers and 
providers, regardless of the method of communication. One commenter 
noted that out-of-network providers were particularly likely to rely on 
paper remittance advice because they were less likely to have 
established electronic communication with a plan with which they do not 
contract.
    After reviewing comments, the Departments are finalizing a modified 
version of the proposal to require that, when providing any remittance 
advice (including in paper or electronic form) to an entity (other than 
a participant, beneficiary, or enrollee) that does not have a 
contractual relationship, directly or indirectly, with a group health 
plan or a health insurance issuer offering group or individual health 
insurance

[[Page 33910]]

coverage for the furnishing of an item or service under the plan or 
coverage, in response to a claim for payment for health care items and 
services furnished by that entity, the plan or issuer must use CARCs 
and RARCs, in the manner and timeframe specified in guidance issued by 
the Departments. This modification to the proposed language does not 
alter the requirements proposed in the 2023 proposed rules, but rather 
more clearly communicates that the requirement to use CARCs and RARCs, 
as specified in guidance, applies to a plan or issuer regardless of the 
format of the remittance advice it uses to communicate with an entity 
with which it does not have a direct or indirect contractual 
relationship.
    In response to comments raising concerns generally related to the 
use of paper remittances or ERA, the Departments acknowledge that paper 
remittance advice may impose a higher administrative burden on 
providers. However, as noted in the 2023 proposed rules and in section 
II.B.1 of this preamble, the Departments understand that some plans and 
issuers routinely communicate with some providers using paper 
remittance advice and other formats outside the purview of the HIPAA 
transaction standards. Indeed, it is particularly important to ensure 
that the requirements apply to paper remittances, to the extent that 
plans or issuers use paper remittance advice for items and services 
provided by entities with which they do not have a direct or indirect 
contractual relationship. By applying the CARC and RARC requirement 
regardless of remittance advice format, these final rules ensure that 
entities that do not receive ERA will benefit from improved access to 
standardized Federal IDR process eligibility information early in the 
claims process. The Departments reiterate that the CARC and RARC 
requirement in these final rules only applies to plans and issuers when 
sending any paper or electronic remittance advice to entities with 
which they do not have a direct or indirect contractual relationship. 
It does not apply to any remittance information or EOB sent from plans 
and issuers directly to plan participants, beneficiaries, or enrollees.
    The 2023 proposed rules did not propose any changes to requirements 
governing the format of remittances or remittance advice. The 
Departments clarify that these final rules neither establish a 
requirement to use a specific format nor alter existing requirements 
related to the use of electronic or paper remittance advice (such as 
the requirement that entities subject to electronic transactions 
requirements under HIPAA must use ERA at the request of a provider, 
facility, or provider of air ambulance services, regardless of its 
network status or other contractual relationship with the plan or 
issuer).\51\
---------------------------------------------------------------------------

    \51\ See 45 CFR 162.925(a)(1) (providing that if an entity 
requests a health plan to conduct a transaction as a standard 
transaction, the health plan must do so).
---------------------------------------------------------------------------

g. Enforcement of CARC and RARC Requirement
    Many commenters highlighted the importance of ensuring that the 
CARC and RARC requirement is strictly and consistently enforced. 
Several commenters recommended imposing monetary penalties on plans and 
issuers that fail to provide required CARCs and RARCs. Several 
commenters recommended that the Departments modify the Federal IDR 
process to either create consequences for plans or issuers that fail to 
provide appropriate CARCs or RARCs, or provide relief for providers 
that are impacted by a plan's or issuer's failure to provide 
appropriate CARCs and RARCs.
    In previously issued guidance, the Departments stated that when a 
plan or issuer fails to comply with the QPA disclosure 
requirements,\52\ providers retain the right to initiate the open 
negotiation period within 30 business days of receiving the initial 
payment or notice of denial of payment.\53\ The Departments further 
stated that in cases in which a plan or issuer fails to comply with the 
disclosure requirements, the provider did not have the information 
necessary to initiate the 30-business-day open negotiation period, and 
the provider subsequently missed the deadline to initiate the Federal 
IDR process, the provider may alternatively request an extension to 
initiate the Federal IDR process by emailing a request for extension 
due to extenuating circumstances to <a href="/cdn-cgi/l/email-protection#165073727364777a5f524447637365627f79786556757b65387e7e6538717960"><span class="__cf_email__" data-cfemail="83c5e6e7e6f1e2efcac7d1d2f6e6f0f7eaecedf0c3e0eef0adebebf0ade4ecf5">[email&#160;protected]</span></a>.
---------------------------------------------------------------------------

    \52\ 26 CFR 54.9816-6(d)(1) or (2), 29 CFR 2590.716-6(d)(1) or 
(2), and 45 CFR 149.140(d)(1) or (2).
    \53\ See FAQs about Affordable Care Act and Consolidated 
Appropriations Act, 2021 Implementation Part 55 (August 19, 2022), 
Q20, available at <a href="https://www.dol.gov/sites/dolgov/files/ebsa/about-ebsa/our-activities/resource-center/faqs/aca-part-55.pdf">https://www.dol.gov/sites/dolgov/files/ebsa/about-ebsa/our-activities/resource-center/faqs/aca-part-55.pdf</a> and <a href="https://www.cms.gov/files/document/faqs-part-55.pdf">https://www.cms.gov/files/document/faqs-part-55.pdf</a>; see also FAQs about 
Consolidated Appropriations Act, 2021 Implementation Part 69 
(January 14, 2025), Q3 and Q4, available at <a href="https://www.dol.gov/sites/dolgov/files/ebsa/about-ebsa/our-activities/resource-center/faqs/aca-part-69.pdf">https://www.dol.gov/sites/dolgov/files/ebsa/about-ebsa/our-activities/resource-center/faqs/aca-part-69.pdf</a> and <a href="https://www.cms.gov/files/document/faqs-part-69.pdf">https://www.cms.gov/files/document/faqs-part-69.pdf</a>.
---------------------------------------------------------------------------

    In response to comments, the Departments note that this option to 
request extensions will also apply in cases where a plan or issuer 
fails to provide CARCs and RARCs as required under these final rules. 
The Departments are not imposing additional Federal IDR process 
consequences in these final rules on plans and issuers that fail to 
provide CARCs and RARCs, which could complicate and delay payment 
determinations, but will continue to assess the need for Federal IDR 
process changes and propose any such changes in future rulemaking. The 
Departments will use existing processes to enforce requirements under 
the Code, ERISA, and the PHS Act that apply to group health plans and 
health insurance issuers, including the requirements added by these 
final rules.

C. Information To Be Shared About the QPA

    As described in section I.B of this preamble, the July 2021 interim 
final rules and August 2022 final rules provide that if the recognized 
amount for an item or service is the QPA, plans and issuers must make 
certain disclosures about the QPA with each initial payment or notice 
of denial of payment and must also provide certain additional 
information upon request.\54\ This information must be provided in 
writing, either on paper or electronically, to a provider, facility, or 
provider of air ambulance services, as applicable.\55\ These 
requirements were intended to ensure the disclosure of information 
about the QPA in any instance in which an item or service could be 
eligible for the Federal IDR process. However, the current text of the 
regulations describing when such disclosures are required does not 
precisely mirror all instances in which an item or service could be 
eligible for the Federal IDR process.
---------------------------------------------------------------------------

    \54\ 86 FR 36898; 87 FR 52633.
    \55\ 29 CFR 2590.716-6(d) and 45 CFR 149.140(d).
---------------------------------------------------------------------------

    The term ``recognized amount'' is not used in the statute or 
regulations for purposes of determining cost sharing for air ambulance 
services furnished by nonparticipating providers of air ambulance 
services. Accordingly, in the 2023 proposed rules, the Departments 
proposed a change to 26 CFR 54.9816-6T(d), 29 CFR 2590.716-6(d), and 45 
CFR 149.140(d) to specify that, in the case of air ambulance services, 
plans and issuers must disclose the QPA and certain information about 
the QPA when cost sharing is calculated based on the lesser of the QPA 
or the amount billed by the provider of air ambulance services. The 
Departments similarly proposed that, in the case of emergency and 
applicable non-emergency services,

[[Page 33911]]

information about the QPA must be disclosed when the recognized amount 
is lesser of the QPA or the amount billed by the provider or facility. 
This proposal to require the disclosure when the amount billed is used 
to determine cost sharing takes into account the rare circumstances 
where the billed amount is less than the QPA. In such cases, cost 
sharing must be based on the billed amount, as specified in existing 
rules at 29 CFR 2590.716-3, 29 CFR 2590.717-1(b)(2), 45 CFR 149.30, and 
45 CFR 149.130(b)(2).
    Lastly, the Departments proposed technical changes to clarify 
several definitional terms and proposed several additional items of 
information that must be included as part of the disclosure. After 
considering the comments received, the Departments are finalizing the 
proposed changes with minor modifications.
    The Departments received several comments expressing support for 
the proposed change to 26 CFR 54.9816-6T(d), 29 CFR 2590.716-6(d), and 
45 CFR 149.140(d) to reflect that the term ``recognized amount'' does 
not apply for air ambulance services. These commenters stated that the 
change in terminology will result in plans and issuers providing 
necessary information for all items and services that may be subject to 
the Federal IDR process, making it easier for providers of air 
ambulance services to decide, prior to the open negotiation process, 
whether a claim is eligible for the IDR process.
    After considering the comments, the Departments are finalizing this 
amendment as proposed. The amendment does not change existing policy 
but rather is a technical amendment to reflect that the term 
``recognized amount'' is not used in the statute or the regulations for 
purposes of determining cost sharing for air ambulance services 
furnished by nonparticipating providers of air ambulance services. 
Instead, for air ambulance services, cost sharing is calculated based 
on the lesser of the QPA or the amount billed by the provider of air 
ambulance services.
    The Departments also proposed amendments to 26 CFR 54.9816-6(d), 29 
CFR 2590.716-6(d), and 45 CFR 149.140(d) to require plans and issuers 
to make the same disclosures regarding the QPA and related information 
when the recognized amount (or for air ambulance services, the amount 
on which cost sharing is based) is the amount billed by the provider, 
facility, or provider of air ambulance services.
    Several commenters stated their support for this clarifying 
amendment, stating that in cases where the recognized amount (or the 
amount upon which cost sharing is based) is the billed amount, the QPA 
and its related disclosures are important information to have prior to 
the open negotiation period and when assessing whether to initiate a 
Federal IDR dispute. These commenters also explained that the change 
would facilitate certified IDR entities' determinations of whether a 
claim is eligible for the Federal IDR process, but did not expand 
further on this point. A few commenters urged that this change not be 
finalized. Those commenters stated that disclosing certain information 
about the QPA when the calculation of cost sharing involves the billed 
amount would incentivize providers to increase their billed charges to 
the QPA (or higher), which would in turn increase costs to patients and 
the larger health care system. In addition, one commenter stated that 
this change is unfeasible because the disclosure requirements would 
apply to items and services for which the payer is unable to generate 
QPA values, due to limited sample sizes.
    The Departments disagree with the concerns stated by commenters 
about finalizing the amendment as proposed. When an All-Payer Model 
Agreement or specified State law does not apply, the recognized amount 
used to determine cost sharing (or for air ambulance services, the 
amount upon which cost sharing is based) for an item or service subject 
to the No Surprises Act is the lesser of the amount billed by the 
provider or facility or the QPA. When the QPA is not the lesser amount 
and therefore is not used to determine cost sharing, the item or 
service may nevertheless be eligible for the Federal IDR process, 
provided other conditions of eligibility are met. Because certified IDR 
entities are required under statute to consider the QPA in rendering a 
payment determination, the Departments have concluded that it is 
critical that plans and issuers share information about the QPA even 
when the billed amount, rather than the QPA, is used to determine cost 
sharing.\56\
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    \56\ The Departments note that a plan or issuer must provide the 
required QPA disclosures, regardless of the cost-sharing requirement 
imposed under the plan or coverage, including for example, when the 
cost-sharing requirement for the item or service is $0 or is a 
copayment.
---------------------------------------------------------------------------

    In response to the comment regarding inability to calculate QPA 
values due to a limited sample size, the Departments note that QPAs are 
based on contracted rates, and not on amounts billed by providers.\57\ 
Accordingly, after considering the concerns raised and the many 
comments received supporting the proposed changes, the Departments are 
finalizing this amendment as proposed.
---------------------------------------------------------------------------

    \57\ See 29 CFR 2590.716-6(b) and (c)(3) and 45 CFR 149.140(b) 
and (c)(3).
---------------------------------------------------------------------------

    The Departments also proposed technical and conforming amendments 
to align the requirements under 26 CFR 54.9816-6T, 29 CFR 2590.716-6, 
and 45 CFR 149.140 with the October 2021 interim final rules and 
current practice. One of these proposed changes was to specify that 
``days,'' as described in the disclosure provisions (for example, the 
30-business-day open negotiation period), are counted using ``business 
days'' (rather than ``calendar days''), where applicable. One commenter 
stated concern that specifying ``business days'' instead of ``calendar 
days'' would lead to delays and explained that the Congress did not 
specify the use of business days, suggesting that calendar days were 
intended. However, the proposed change is consistent with the 
Departments' previously described interpretation of the statute. 
Specifically, in the October 2021 interim final rules, the Departments 
noted, ``[t]he statute is largely silent on whether the term `days' 
used in these provisions means business days or calendar days. However, 
in certain provisions, the No Surprises Act specifies the use of 
calendar days or business days, indicating that where the statute is 
silent the Departments may choose either meaning.'' \58\ The 
Departments have determined that aligning the timeframes described in 
the disclosure with the existing timeframes for open negotiation will 
minimize confusion. Therefore, to ensure conformity and consistency 
between the disclosures and the regulatory timeframes, the Departments 
have finalized the amendments as proposed, interpreting ``days'' as 
``business days'' for the purpose of the disclosures required under 29 
CFR 2590.716-6(d) and 45 CFR 149.140(d), to align with the previously 
codified regulatory timeframes.\59\
---------------------------------------------------------------------------

    \58\ 86 FR 55980, 55989 (October 7, 2021).
    \59\ Id.
---------------------------------------------------------------------------

    The Departments also proposed technical and conforming amendments 
to align the language in 29 CFR 2590.716-6(d)(1)(iv) and 45 CFR 
149.140(d)(1)(iv) with the requirements established in the October 2021 
interim final rules regarding initiation of open negotiation and the 
Federal IDR process by replacing the phrase ``amount of total payment'' 
with the term ``out-of-network rate,'' as defined in 29 CFR 2590.716-3 
and 45 CFR 149.30, and by describing an unsuccessful open

[[Page 33912]]

negotiation period as not resulting in an ``agreement on the amount of 
payment'' rather than not resulting in a ``determination.'' The 
Departments received one comment supporting the proposed changes and 
did not receive any comments opposing these amendments. The Departments 
are finalizing these changes as proposed.
    The Departments further proposed that plans' and issuers' 
disclosures must include a statement that explains that a provider, 
facility, or provider of air ambulance services must notify the 
Departments to initiate open negotiation. The requirement, which would 
update the disclosure language consistent with related changes that the 
Departments proposed in the 2023 proposed rules,\60\ would apply to 
disclosures that are made after the open negotiation notice can be 
submitted through the Federal IDR portal. Commenters stated support for 
the proposed change and the Departments are finalizing this change in 
29 CFR 2590.716-6(d)(1)(iv)(A)(2) and 45 CFR 140(d)(1)(iv)(A)(2) as 
proposed.
---------------------------------------------------------------------------

    \60\ See section II.D.1 of this preamble, for further discussion 
of the Federal IDR portal.
---------------------------------------------------------------------------

    As the Departments explained in the preamble to the 2023 proposed 
rules, disclosure of additional information with the QPA as proposed is 
critical to ensuring that all parties have the information necessary to 
determine whether a payment dispute is eligible for the Federal IDR 
process. Accordingly, the Departments proposed amending the disclosure 
requirements at 26 CFR 54.9816-6T, 29 CFR 2590.716-6, and 45 CFR 
149.140 by redesignating paragraph (d)(1)(v) as (d)(1)(vi) and adding a 
new paragraph (d)(1)(v) to require plans and issuers to disclose the 
legal business name of the plan (if any) or issuer; the legal business 
name of the plan sponsor (if applicable); and the registration number 
assigned under proposed 26 CFR 54.9816-9, 29 CFR 2590.716-9, or 45 CFR 
149.530, if the plan or issuer is registered with the Federal IDR 
registry. The Departments also sought comment on the specific technical 
and operational steps that would be necessary for plans and issuers to 
disclose this additional information when providing an initial payment 
or notice of denial of payment, including the appropriate 
implementation period that would allow plans and issuers to complete 
these steps to comply with the 2023 proposed rules, if finalized, and 
any additional proposed disclosures that might be required to be 
communicated using a CARC or RARC as specified in guidance issued by 
the Departments. In consideration of the comments received, the 
Departments are finalizing the disclosure requirements with minor 
modifications as discussed below.
    The Departments received many comments in support of these 
proposals. Many commenters in support explained that the new content 
elements would facilitate open negotiation by ensuring all parties have 
more accurate contact information for the specific plan or issuer. 
Commenters further stated that the proposed requirements would 
establish clearer standards for initiating IDR, ensure all parties have 
the information they need to efficiently determine eligibility for IDR, 
identify which entity is ultimately responsible for payment following a 
payment determination, and reduce confusion regarding the application 
of the ``cooling off'' period.
    A few commenters were generally supportive of the proposed 
disclosure requirements but recommended minor changes. For example, a 
few commenters opposed the proposal to require inclusion of the legal 
business name of a plan sponsor, when applicable. One of these 
commenters recommended that plan sponsors be permitted to use the 
``does business as'' or product marketing name recognized by the 
relevant State insurance regulator, instead of the legal business name 
when the plan sponsor has assigned the responsibility for managing 
claims administration to its issuer or TPA, stating that in such 
circumstances, the plan sponsor information is not necessary to 
adjudicate a Federal IDR dispute and may cause confusion. Another 
commenter recommended that the Departments require the disclosure of 
the legal business name of the group health plan and sponsor only for 
self-insured group health plans. Another commenter opposed the 
Departments' proposal, expressing concern that the additional items 
proposed to be required as part of the disclosure are duplicative of 
other steps in the Federal IDR process.
    The Departments disagree that the proposed disclosures are 
duplicative of other steps in the Federal IDR process. As discussed in 
the preamble to the 2023 proposed rules, transparent and meaningful 
disclosure about the calculation of the QPA is crucial to inform the 
negotiation process. Ensuring consistency and uniformity between the 
information that plans and issuers provide in the Federal IDR registry 
discussed in section II.F of the preamble and the information disclosed 
by plans and issuers with their initial payment or notice of denial of 
payment is also necessary to ensure the efficient operation of the 
Federal IDR process. Allowing parties to choose whether to disclose 
their legal business name or their ``does business as'' name would 
undermine that uniformity.
    As explained in more detail in section II.F of the preamble which 
outlines the Federal IDR registration process, self-insured plans must 
provide the legal business name of their plan sponsor even if the 
sponsor has apportioned responsibility to its TPA, as certified IDR 
entities and initiating parties must distinguish between self-insured 
group health plans with the same TPA to determine whether items and 
services were paid by the same self-insured group health plan and are 
therefore eligible to be batched together in a single dispute.
    To align required disclosures with the Federal IDR registration 
process, the Departments are finalizing with a minor modification the 
requirement that plans and issuers include, as part of the required 
disclosures, the registration number assigned to the plan or issuer, as 
required under 26 CFR 54.9816-9, 29 CFR 2590.716-9, or 45 CFR 149.530, 
as applicable. The phrase, ``if the plan or issuer is registered,'' has 
been replaced with ``as required'' to better reflect that a plan or 
issuer is required to include a registration number as part of the 
disclosures when it becomes subject to the registration requirement. 
Under these final rules, each self-insured group health plan, FEHB 
Program carrier, and health insurance issuer offering group or 
individual health insurance coverage subject to the Federal IDR process 
must register with the Federal IDR Registry before the later of the 
date that is 90 business days after the date the registry becomes 
available or the date the plan sponsor or health insurance issuer 
begins offering a group health plan or health insurance coverage or 
FEHB Program carrier begins offering an FEHB plan subject to the 
Federal IDR process. Failure to comply with the registration 
requirement by the applicable date will be a violation of these final 
rules.
    The Departments also received many comments suggesting additional 
information that could be included in the disclosures. Many commenters 
recommended that the Departments require that plans and issuers, when 
providing the QPA with the initial payment or notice of denial of 
payment, also disclose more detailed information on the specific 
methodology and data used for calculating the QPA. One commenter 
suggested requiring a fax number in addition to contact information 
that is already required. Some commenters recommended that the 
Departments require standardized

[[Page 33913]]

communication from plans and issuers that are beyond the proposed use 
of CARCs/RARCs so that the QPA and related disclosure information is 
presented clearly and consistently to providers and facilities. These 
commenters believe the QPA currently is not provided in a clearly 
identifiable manner, that the ASC X12 835 transaction standard should 
be used, and that since there are limits on the current ASC X12 835 
transaction standard, it should be modified so that all information, 
including the QPA, is disclosed uniformly.
    While nothing in these final rules precludes including a fax number 
as part of a plan's or issuer's contact information, the Departments 
decline to require that information at this time given that some plans 
and issuers may not have fax numbers, especially as fax machines become 
increasingly replaced by digital technology such as email. In addition, 
the Departments decline to require disclosure of additional information 
about the methodology and data used for calculating the QPA in these 
final rules because these additional disclosures would not assist 
parties in determining whether a payment dispute is eligible for the 
Federal IDR process and would be difficult to implement. These final 
rules also do not modify the ASC X12 835 transaction standard, which is 
outside the scope of this rulemaking.
    The provisions of these final rules related to disclosure of 
information about the QPA apply to disclosures required to be provided 
on or after the effective date of the final rules, as discussed in more 
detail in section II.H.I of this preamble.

D. Open Negotiation and Initiation of the Federal IDR Process

1. Open Negotiation
a. Determination of Payment Amount Through Open Negotiation
    The Departments proposed several amendments to the open negotiation 
provisions at 26 CFR 54.9816-8(b)(1), 29 CFR 2590.716-8(b)(1), and 45 
CFR 149.510(b)(1) to impose new information exchange requirements and 
to establish a process for tracking open negotiation through the 
Federal IDR portal in anticipation of initiation of a Federal IDR 
process dispute.
    First, the Departments proposed to amend paragraphs 26 CFR 54.9816-
8(b)(1)(i), 29 CFR 2590.716-8(b)(1)(i), and 45 CFR 149.510(b)(1)(i) to 
establish a requirement that a party must provide a written open 
negotiation notice to the other party and to the Departments through 
the Federal IDR portal to initiate the open negotiation period, and 
that such notice must comply with the content requirements of proposed 
paragraph (b)(1)(ii) and in the manner specified in proposed (b)(3), as 
discussed in sections II.D.1.c and III.D.3 of this preamble, 
respectively.\61\ The Departments sought comment on this proposed 
amendment. After consideration of comments, the Departments are 
finalizing this amendment as proposed.
---------------------------------------------------------------------------

    \61\ As discussed in section II.D.3 of this preamble, the 
Departments are finalizing new paragraphs 26 CFR 54.9816-8(b)(3), 29 
CFR 2590.716-8(b)(3), and 45 CFR 149.510(b)(3), which describe the 
manner in which the open negotiation, open negotiation response, and 
notice of IDR initiation notices must be transmitted. Specifically, 
a party must furnish to the other party, and the Departments, the 
notices and supporting documentation described in paragraphs 
(b)(1)(ii) (open negotiation notice), (b)(1)(iii) (open negotiation 
response notice), (b)(2)(ii) (notice of IDR initiation), and 
(b)(2)(iii) (notice of IDR initiation response) through the Federal 
IDR portal, using the standard forms to be developed by the 
Departments.
---------------------------------------------------------------------------

    Many commenters supported the proposal to establish the requirement 
that a party must provide a written open negotiation notice to the 
other party and the Departments through the Federal IDR portal to 
initiate the open negotiation period. Many stated that the use of the 
Federal IDR portal would be beneficial for all parties. These 
commenters noted that using the portal to transmit the open negotiation 
notice and track the initiation of the 30-business-day open negotiation 
period would encourage meaningful participation in negotiations, 
improve transparency, support information sharing, and increase 
administrative efficiency. A few commenters stated that the proposal 
would improve certified IDR entities' ability to determine the 
eligibility of an item or service for the Federal IDR process.
    Several other commenters generally supporting the proposal 
suggested additional changes or clarifications. Some of these 
commenters expressed concern that the current Federal IDR portal 
infrastructure would require extensive improvements to effectively 
implement the proposal and should undergo prototype testing to ensure 
successful implementation. A few commenters urged the Departments to 
utilize automation to reduce duplicative administrative requirements 
when submitting an open negotiation notice. Some commenters urged the 
Departments to clarify that a party initiating open negotiation is not 
required to submit open negotiation information through any mechanism 
other than the Federal IDR portal (for instance, through a payor's 
proprietary portal).
    A few commenters opposed the proposal to establish the requirement 
that to initiate the open negotiation period, a party must provide a 
written open negotiation notice to the other party and the Departments 
through the Federal IDR portal. One commenter opposed the addition of 
any new requirements during the open negotiation process, as it would 
increase burden on the parties. Another commenter cautioned that this 
requirement would ultimately raise negotiated costs and increase 
overall upward pressure on health care prices because sharing 
additional information before IDR initiation would decrease the overall 
cost to providers of participating in the Federal IDR process, 
particularly for eligible disputes, by smoothing information exchanges 
and making filing easier, and increase provider leverage in pre-IDR 
negotiations.
    After consideration of comments, the Departments are finalizing the 
proposal to amend paragraph 26 CFR 54.9816-8(b)(1)(i), 29 CFR 2590.716-
8(b)(1)(i), and 45 CFR 149.510(b)(1)(i) to establish a requirement that 
a party must provide a written open negotiation notice to the other 
party and to the Departments through the Federal IDR portal to initiate 
the open negotiation period. This will improve communication and 
transparency between parties while enabling certified IDR entities to 
determine whether a dispute has completed the required open negotiation 
period. While the Departments understand the concern regarding upward 
pressure on healthcare pricing based on increased provider 
participation in open negotiation, these final rules incentivize 
parties to negotiate and may therefore discourage over-reliance on 
disputing claims through the Federal IDR process and help parties 
identify ineligible disputes prior to initiating IDR. This, in turn, 
could lower costs for both disputing parties who must pay fees to 
participate in the Federal IDR process, which could ultimately reduce 
costs for consumers. Further, prioritizing the negotiation of out-of-
network rates before initiation of the Federal IDR process could 
contribute to improved contract or network negotiations between 
providers and plans. The Departments expect parties to negotiate in 
good faith and comply with the requirements finalized in these rules.
    The Departments also acknowledge the concerns expressed regarding 
limited portal functionality and increasing administrative burden, but 
have determined that the administrative simplicity of having all 
notices go

[[Page 33914]]

through one portal will outweigh the operational burdens of using the 
portal.
    Further, these final rules consolidate the exchange of all required 
open negotiation notices through the Federal IDR portal and do not 
require parties to submit multiple notices or submit notices through 
plan and issuer proprietary portals to initiate open negotiation. It is 
the Departments' position that a disputing party cannot require and 
should not expect the other party to also submit any notices under 
these final rules through such proprietary portals. The Departments 
will continue to pursue a streamlined open negotiation experience 
within the Federal IDR portal that collects the relevant information to 
facilitate negotiations while minimizing duplicative administrative 
work.
    Second, the Departments proposed to amend 26 CFR 54.9816-
8(b)(1)(i), 29 CFR 2590.716-8(b)(1)(i), and 45 CFR 149.510(b)(1)(i) to 
specify that the 30-business-day open negotiation period begins on the 
day on which the party first submits the open negotiation notice, 
including the remittance advice documentation specified in proposed 26 
CFR 54.9816-8(b)(1)(ii)(A)(12), 29 CFR 2590.716-8(b)(1)(ii)(A)(12), and 
45 CFR 149.510(b)(1)(ii)(A)(12), to the other party and the 
Departments. This amendment does not change the 30-business-day 
timeframe for engaging in open negotiation, but instead would provide 
greater clarity for parties engaged in open negotiation and improve the 
shared understanding of deadlines related to the open negotiation 
period. After consideration of comments, the Departments are finalizing 
this amendment as proposed.
    A few commenters generally supported this proposed amendment to 26 
CFR 54.9816-8(b)(1)(i), 29 CFR 2590.716-8(b)(1)(i), and 45 CFR 
149.510(b)(1)(i). One of these commenters noted that the proposal would 
minimize operational and resource issues for providers by establishing 
clear expectations about the open negotiation timeframe.
    While no commenters explicitly opposed the proposal, a few 
commenters suggested additional requirements. One commenter suggested 
that the Departments clarify that the open negotiation period should 
only be considered to have been initiated once a completed open 
negotiation notice has been submitted to the Departments and the other 
party, regardless of whether the remittance advice has been sent.
    The Departments are finalizing as proposed the amendment to 26 CFR 
54.9816-8(b)(1)(i), 29 CFR 2590.716-8(b)(1)(i), and 45 CFR 
149.510(b)(1)(i) to specify that the 30-business-day open negotiation 
period begins on the day a party first submits the open negotiation 
notice, including the remittance advice documentation specified in 
paragraph (b)(1)(ii)(A)(12) to the other party and the Departments. 
However, in the event that the party submitting the open negotiation 
notice did not receive the remittance advice because a plan or issuer 
failed to comply with the disclosure requirements in 26 CFR 54.9816-
6(d)(1), 29 CFR 2590.716-6(d)(1) or (2), and 45 CFR 149.140(d)(1) or 
(2), that party retains the right to initiate the open negotiation 
within 30 business days of receiving the initial payment or notice of 
denial of payment, consistent with FAQs About Affordable Care Act and 
Consolidated Appropriations Act, 2021 Implementation Part 55.\62\ By 
clarifying the conditions required to initiate open negotiation, the 
Departments anticipate that the parties will have a better 
understanding of the requirements to initiate open negotiation and will 
be able to better allocate resources to negotiation efforts.
---------------------------------------------------------------------------

    \62\ See FAQs about Affordable Care Act and Consolidated 
Appropriations Act, 2021 Implementation Part 55, Q20 (August 19, 
2022), available at https://www.dol.gov/sites/dolgov/files/EBSA/
about-ebsa/our-activities/resource-center/faqs/aca-part-55.pdf and 
<a href="https://www.cms.gov/files/document/faqs-part-55.pdf">https://www.cms.gov/files/document/faqs-part-55.pdf</a>.
---------------------------------------------------------------------------

    Finally, for the proposed amendments to the open negotiation 
provisions at 26 CFR 54.9816-8(b)(1), 29 CFR 2590.716-8(b)(1), and 45 
CFR 149.510(b)(1), a few commenters noted that, if finalized, the open 
negotiation provisions may exceed the Departments' statutory authority 
to implement the Federal IDR process, as open negotiation is not 
explicitly included in the Departments' implementation mandate.
    The Departments disagree. Under section 9816(c)(1)(B) of the Code, 
section 716(c)(1)(B) of ERISA, and section 2799A-1(c)(1)(B) of the PHS 
Act, the open negotiation period must conclude before a party may 
initiate IDR, making it a required component of the Federal IDR 
process. Additionally, the statute directs the Departments to jointly 
establish one Federal IDR process under which a certified IDR entity 
must determine the out-of-network rate for any qualified IDR item or 
service subject to IDR initiation. In implementing the Federal IDR 
process, the Departments have determined that the current requirements 
should be improved to facilitate beginning the open negotiation period. 
As a result, the Departments are finalizing the requirements for 
disputing parties to furnish the open negotiation notice and open 
negotiation response notice through the Federal IDR portal to capture 
this information.
b. Open Negotiation Response Notice
    The Departments proposed language at 26 CFR 54.9816-8(b)(1)(i), 29 
CFR 2590.716-8(b)(1)(i), and 45 CFR 149.510(b)(1)(i) to require that 
the party in receipt of the open negotiation notice provide a written 
notice and supporting documentation in response to the open negotiation 
notice (open negotiation response notice) to the other party and the 
Departments through the Federal IDR portal as soon as practicable, but 
no later than the 15th business day of the 30-business-day open 
negotiation period. The Departments solicited comment on this proposed 
requirement. After consideration of comments, the Departments are 
finalizing this requirement as proposed.
    Many commenters generally supported the proposal to require the 
party in receipt of the open negotiation notice to provide an open 
negotiation response notice by the 15th business day of the 30-
business-day open negotiation period. A few of these commenters noted 
that the proposal to require the open negotiation response notice would 
increase parties' accountability in negotiations and improve 
transparency of the information relevant to the item or service subject 
to negotiation.
    A few commenters opposed the proposal to require an open 
negotiation response notice. These commenters shared concerns regarding 
the burden of such a requirement. One commenter noted that the current 
Federal IDR portal functionality would not support such a requirement, 
and that the operational disruption caused by the volume of open 
negotiation submissions would compromise the entire Federal IDR 
process.
    The Departments requested comment on whether the party in receipt 
of the open negotiation notice should be required to furnish the open 
negotiation response notice to the other party and the Departments 
earlier than proposed to allow additional time for the party submitting 
the open negotiation notice to review the open negotiation response 
notice. The Departments also sought comment on imposing a deadline for 
the open negotiation response notice later than the proposed deadline, 
such as by the 20th business day or up to the last day of the 30-
business-day open negotiation period.
    Several commenters advised against extending the deadline to 
respond with the open negotiation response notice, asserting that the 
extra time would be

[[Page 33915]]

unnecessary. A few commenters also supported the Departments' 
clarification in the preamble to the 2023 proposed rules that the 
failure to respond to the open negotiation notice would not extend or 
otherwise alter the completion of the 30-business-day open negotiation 
timeframe. One commenter suggested that if a plan or issuer does not 
respond to the open negotiation notice by the 15th business day of the 
30-business-day open negotiation period, the Departments should allow a 
provider to initiate the Federal IDR process before the end of the 30-
business-day open negotiation period. Another commenter opposed the 
proposed 15-business-day deadline, stating that compliance with the 
requirement would not be possible due to the high volume of disputes, 
and suggested instead that the response should be accepted at any time 
during the 30-business-day open negotiation period. Several commenters 
recommended a shorter deadline for response. Several commenters were in 
favor of extending the timeline, stating that more time would be needed 
to review and meaningfully consider the content of the open negotiation 
notice. A few commenters suggested extending the timeline to 20 
business days. A few commenters made suggestions regarding conditions 
to be satisfied by the open negotiation notice before the proposed 15-
business-day deadline is triggered. These commenters requested that the 
Departments clarify the expectations for participation in the open 
negotiation period if either the provider or plan is not furnished with 
complete information regarding the item or service.
    After reviewing comments received, the Departments are finalizing 
26 CFR 54.9816-8(b)(1)(i), 29 CFR 2590.716-8(b)(1)(i), and 45 CFR 
149.510(b)(1)(i) as proposed. The Departments maintain that the open 
negotiation response notice will increase transparency and improve the 
exchange of information during open negotiation. While finalizing this 
provision adds an additional requirement to the process, the 
efficiencies achieved by requiring a response from the parties in 
receipt of the open negotiation notice will likely result in more 
meaningful participation in open negotiation overall. The Departments 
have determined that the 15-business-day deadline to respond to the 
open negotiation notice provides an appropriate amount of time for the 
party to respond and will encourage a meaningful exchange of 
information during open negotiation. This deadline provides equal time 
for each party to review their respective notices, and either reducing 
or extending the deadline to submit the open negotiation response 
notice from 15 business days would disadvantage one of the two parties. 
Therefore, the Departments have determined that the proposed policy 
appropriately balances each party's interest and should be finalized.
    The Departments note that under section 9816(c)(1) of the Code, 
section 716(c)(1) of ERISA, and section 2799A-1(c)(1) of the PHS Act, 
the parties must exhaust the open negotiation period prior to 
initiating the Federal IDR process. Accordingly, initiation of the 
Federal IDR process before the end of the 30-business day open 
negotiation period is not permitted.
    The Departments acknowledge the importance of providing a party 
with complete information before it is expected to respond and note 
that all open negotiation notice elements in these final rules are 
required. The Departments reiterate that if a party fails to furnish an 
open negotiation response notice containing all required information to 
the other party and the Departments, the Departments may review and 
determine whether enforcement action may be appropriate. However, 
failure to timely furnish an open negotiation response notice in any 
specific open negotiation will not extend the open negotiation period, 
delay the timeframe for initiation of the Federal IDR process, or 
affect either party's ability to initiate the Federal IDR process.
    Additionally, the Departments sought comment on allowing certified 
IDR entities, as a means of incentivizing participation in the proposed 
exchange of notices, to take into consideration a party's good faith 
compliance with the 15-business-day deadline for the open negotiation 
response notice when making their payment determinations. The 
Departments are declining to finalize this policy and therefore are not 
establishing a ``good faith'' requirement in regulation.
    Many commenters supported this idea. Many of these commenters 
requested that the Departments allow certified IDR entities to penalize 
the party for non-compliance and specifically suggested that failure to 
timely respond to the open negotiation notice should result in a 
default determination, or the automatic selection of the provider's 
offer during the Federal IDR process. Several of these commenters also 
noted that if the Departments were to allow certified IDR entities to 
consider a party's compliance with the requirement to provide an open 
negotiation response notice, the Departments should explicitly connect 
non-compliance with a failure to engage in good faith negotiations. 
Some of these commenters suggested that the Departments adopt more 
explicit standards regarding good faith negotiation to support this 
interpretation. A few commenters offered that the Departments should 
establish a good faith requirement in regulation, while a few other 
commenters suggested that the Departments provide guidance to the 
certified IDR entities to consider failure to respond to the open 
negotiation notice as evidence of ``bad faith.'' Further, a few 
commenters provided recommendations related to the adoption of good 
faith requirements, specifically, that the Departments should allow 
certified IDR entities to consider any offers that deviate considerably 
between open negotiation and IDR offer to be evidence of ``bad faith'' 
engagement.
    A few commenters opposed allowing certified IDR entities to 
consider compliance with the proposed requirement when making their 
payment determinations. One of these commenters noted that since the No 
Suprises Act does not specify how the parties must engage in open 
negotiation, parties have the discretion to decide whether to engage in 
negotiations, and penalizing parties for the way they engage in 
negotiations would be inappropriate and exceed the Departments' 
authority. Another commenter stated that certified IDR entities should 
not be requested to evaluate the substance of negotiations or 
allegations of failure to negotiate in good faith, as this is 
inconsistent with normal mediation rules and practices and may have a 
chilling effect on negotiations. Further, the commenter suggested that 
for operational ease, if either party fails to furnish required 
documents during open negotiation, the disputes should be presumed 
eligible for the Federal IDR process without requiring outreach on the 
part of the certified IDR entity. Another commenter noted that 
certified IDR entities are already permitted to consider any relevant 
information except for the prohibited factors identified in the statute 
and regulation, and therefore it would be inconsistent with the statute 
and regulation to suggest that a certified IDR entity could not 
consider the fact that a party failed to negotiate during open 
negotiation.
    The No Surprises Act does not specify how parties must engage in 
open negotiation, only that it must occur prior to initiation of the 
Federal IDR process, and therefore it is more appropriate for disputing 
parties to

[[Page 33916]]

determine how they wish to negotiate. The Departments also agree with 
the commenter who stated that the proposal would not be consistent with 
normal mediation rules and practices, and that it could have a chilling 
effect on negotiation. Under the statute, certified IDR entities are 
permitted to consider any additional information provided by a 
disputing party related to the offer to determine the appropriate out-
of-network rate, except for the prohibited factors identified in 
statute.\63\ Further, a default determination refers only to a 
situation where one party's offer is not received (including in the 
circumstance where, under these final rules and as outlined in section 
II.E.3.d of this preamble, one party fails to timely pay the certified 
IDR entity fee or administrative fee). It would therefore not be 
appropriate for a certified IDR entity to render a default judgment 
based a party's noncompliance with the 15-business-day deadline for the 
open negotiation response notice, an activity that precedes initiation 
of the Federal IDR process.
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    \63\ Section 9816(c)(5)(C) and (D) of the Code, section 
716(c)(5)(C) and (D) of ERISA, and section 2799A-1(c)(5)(C) and (D) 
of the PHS Act.
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    A few commenters made recommendations about the Departments' 
enforcement more broadly. A few commenters stated that the Departments 
should monitor and take enforcement action against non-compliant 
parties; one commenter suggested that the Departments impose an 
increased administrative fee for a party's failure to provide the open 
negotiation response notice. Several other commenters noted that, as 
proposed, the rules do not contain sufficiently strict enforcement 
language to prompt parties to comply with the requirement to provide an 
open negotiation response notice and urged the Departments to clarify 
the enforcement mechanisms or penalties for failure to respond in the 
final rule.
    Finally, a few commenters encouraged the Departments to take a more 
active role in monitoring disputing parties' conduct and taking quality 
assurance measures. They recommended that the Departments monitor party 
responsiveness during open negotiation and evidence of engagement in 
pre- and post- IDR communications, such as the requirement to make 
timely payment. One commenter suggested that additional guidance on the 
calculation of business days be provided to avoid miscalculations and 
confusion.
    The Departments clarify here that for the purposes of calculating 
Federal IDR process timelines, business days do not include Federal 
holidays and weekends.\64\ In general, all parties are required to 
comply with the requirements established in these final rules, and the 
Departments will use existing processes to enforce requirements under 
the Code, ERISA, and PHS Act that apply to group health plans and 
health insurance issuers, including requirements under these final 
rules. The Departments note that disputing parties may report incidents 
of non-compliance to the No Surprises Help Desk, which will aid in 
conducting targeted oversight activities as needed. Furthermore, the 
Departments will evaluate the need for additional guidance and 
education resources to support interested parties' understanding of the 
timelines, requirements, and processes established in these final 
rules.
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    \64\ See Federal Independent Dispute Resolution (IDR) Process 
Guidance for Certified IDR Entities, Q5 (August 2022), available at 
https://www.cms.gov/files/document/ta-certified-independent-dispute-
resolution-entities-august-2022.pdf.
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c. Open Negotiation Notice Content
    In the 2023 proposed rules, the Departments proposed to amend 26 
CFR 54.9816-8(b)(1)(ii)(A), 29 CFR 2590.716-8(b)(1)(ii)(A), and 45 CFR 
149.510(b)(1)(ii)(A) and add 26 CFR 54.9816-8(b)(1)(ii)(A)(1) through 
(12), 29 CFR 2590.716-8(b)(1)(ii)(A)(1) through (12), and 45 CFR 
149.510(b)(1)(ii)(A)(1) through (12) to require that the open 
negotiation notice include specified information regarding the item or 
service under dispute and the party sending the open negotiation 
notice. The proposed amendments would add new elements to the open 
negotiation notice. The elements that the Departments proposed to be 
included in the open negotiation notice were:
    (1) Information sufficient to identify the provider, facility or 
provider of air ambulance services, including name and current contact 
information (including the legal business name, email address, phone 
number, and mailing address) as provided with the claim form submitted 
by the provider, facility, or air ambulance provider to the plan or 
issuer, and the National Provider Identifier (NPI);
    (2) Information sufficient to identify the plan or issuer, 
including the plan's or issuer's registration number as required under 
Sec.  54.9816-9, Sec.  2590.716-9, and Sec.  149.530, if the plan or 
issuer is registered under Sec.  54.9816-9, Sec.  2590.716-9, and Sec.  
149.530, or an attestation from the party submitting the open 
negotiation notice that the plan or issuer was not registered prior to 
the date it submitted the notice; the legal business name of the plan 
or issuer, as well as the current contact information (name, email 
address, phone number, and mailing address) of the plan or issuer as 
provided with the initial payment or notice of denial of payment; and 
if the party submitting the open negotiation notice is a plan or 
issuer, the plan type (for example, self-insured or fully-insured);
    (3) The name and contact information (including the legal business 
name, email address, phone number, and mailing address) for any third 
party representing the party submitting the open negotiation notice, 
and an attestation that the third party has the authority to act on 
behalf of the party it represents in the open negotiation;
    (4) Information sufficient to identify the item or service, 
including: the date(s) the item or service was furnished and, if the 
party submitting the open negotiation notice is a provider, facility, 
or provider of air ambulance services, the date(s) that the provider, 
facility, or provider of air ambulance services received the initial 
payment or notice of denial of payment for the item or service from the 
plan or issuer; the type of item or service (specifically, whether the 
item or service is an emergency service as defined Sec.  54.9816-
4T(c)(2)(i) or (ii), Sec.  2590.716-4(c)(2)(i) or (ii), and Sec.  
149.110(c)(2)(i) or (ii), non-emergency item or service as described in 
Sec.  54.9816-5T(b), Sec.  2590.716-5(b), and Sec.  149.120(b), or an 
air ambulance service as defined in Sec.  54.9816-3T, Sec.  2590.716-3 
and Sec.  149.30); whether the service is a professional service or 
facility-based service; the State where the item or service was 
furnished; the claim number; the service code; and information 
sufficient to identify the location where the item or service was 
furnished (such as place of service code or bill type code);
    (5) The initial payment amount (including $0 if, for example, 
payment is denied);
    (6) The qualifying payment amount, if provided with the initial 
payment or notice of denial of payment or if the party submitting the 
open negotiation notice is a plan or issuer;
    (7) An offer of an out-of-network rate for each item or service;
    (8) If the party submitting the open negotiation notice is a plan 
or issuer, the amount of cost sharing imposed for the item or service, 
if any;
    (9) If the party submitting the open negotiation notice is a 
provider or facility, a statement that the items or services do not 
qualify for the notice

[[Page 33917]]

and provide consent exception described at 45 CFR 149.410(b) or 45 CFR 
149.420(c) through (i);
    (10) A statement that the provider, facility, or provider of air 
ambulance services was a nonparticipating provider, nonparticipating 
emergency facility, or nonparticipating provider of air ambulance 
services on the date the item or service was furnished;
    (11) General information listed in the standard open negotiation 
notice developed by the Secretary under paragraph (b)(3) of this 
section describing the open negotiation period and the Federal IDR 
process (including a description of the purpose of the open negotiation 
period and Federal IDR process and key deadlines in the open 
negotiation period and Federal IDR process); and
    (12) A copy of the initial payment or notice of denial of payment 
or other remittance advice that is required to include the disclosures 
under Sec.  54.9816-6T(d)(1) and 54.9816-6(d)(1), Sec.  2590.716-
6(d)(1), and Sec.  149.140(d)(1) for the item or service.
    After consideration of comments, the Departments are finalizing the 
required elements on the open negotiation notice as proposed, with two 
exceptions. The Departments are modifying proposed 26 CFR 54.9816-
8(b)(1)(ii)(A)(2) and (12), 29 CFR 2590.716-8(b)(1)(ii)(A)(2) and (12), 
and 45 CFR 149.510(b)(1)(ii)(A)(2) and (12). Specifically, the 
Departments are modifying the proposal at 26 CFR 54.9816-
8(b)(1)(ii)(A)(2), 29 CFR 2590.716-8(b)(1)(ii)(A)(2), and 45 CFR 
149.510(b)(1)(ii)(A)(2) in three ways: (1) regarding the information 
sufficient to identify a plan or issuer, to remove the language ``if 
the plan or issuer is registered under'' Sec.  54.9816-9, Sec.  
2590.716-9, and Sec.  149.530; (2) to require, when applicable, that 
the party submitting the open negotiation notice attest that the plan 
or issuer's registration number was not provided on any remittance 
advice, rather than attest that the plan or issuer was not registered 
prior to the date the open negotiation notice was submitted; and (3) to 
require the open negotiation notice to include the legal business name 
of the plan sponsor when the entity furnishing the open negotiation 
notice is a self-insured group health plan that does not have a legal 
business name. With regard to the proposal at the proposal at 26 CFR 
54.9816-8(b)(1)(ii)(A)(12), 29 CFR 2590.716-8(b)(1)(ii)(A)(12), and 45 
CFR 149.510(b)(1)(ii)(A)(12), the Departments are modifying the 
proposal by requiring the open negotiation notice to include a copy of 
any remittance advice associated with the initial payment or notice of 
denial of payment for the item or service, rather than a copy of the 
initial payment or notice of denial of payment or other remittance 
advice that includes the required disclosures.
    The Departments did not receive comments on the proposals outlined 
at 26 CFR 54.9816-8(b)(1)(ii)(A)(7), (9), (10), and (11), 29 CFR 
2590.716-8(b)(1)(ii)(A)(7), (9), (10), and (11), and 45 CFR 
149.510(b)(1)(ii)(A)(7), (9), (10), and (11). The Departments are 
finalizing these provisions as proposed.
    Many commenters generally supported the proposed elements on the 
open negotiation notice, with several stating that the proposed 
elements would improve engagement in open negotiation and enhance 
understanding of eligibility for the Federal IDR process. As discussed 
below, many commenters stated their support for, or opposition to, 
specific open negotiation notice content elements including required 
contact information, required payment information and documentation, 
and required statements.
    Several commenters supported the proposal to require the open 
negotiation notice to include detailed contact information identifying 
the parties engaged in negotiations under proposed 26 CFR 54.9816-
8(b)(1)(ii)(A)(1) through (3), 29 CFR 2590.716-8(b)(1)(ii)(A)(1) 
through (3), and 45 CFR 149.510(b)(1)(ii)(A)(1) through (3). These 
commenters specifically supported the provision of enhanced contact 
information for payers and providers, the NPI, the plan type (if the 
initiating party is a plan or issuer), and the plan or issuer 
registration number, and indicated that these elements would help 
facilitate negotiations between the correct parties. A few commenters 
stated various concerns regarding the requirement to provide 
information sufficient to identify the plan or issuer, including the 
plan's or issuer's registration number. One commenter noted that the 
registration number should be the only required contact information 
element in the open negotiation notice, while another commenter opposed 
the addition of this element entirely, asserting that it would increase 
the burden on providers. Another commenter opposed the proposal that a 
provider submitting an open negotiation notice should be responsible 
for attesting that the payer was not registered prior to the date the 
party submitted its open negotiation notice, stating that the provider 
should not be held responsible for providing information not in their 
control or possession.
    The requirement to provide enhanced contact information sufficient 
to identify the provider, facility, or provider of air ambulance 
services under 26 CFR 54.9816-8(b)(1)(ii)(A)(1), 29 CFR 2590.716-
8(b)(1)(ii)(A)(1), and 45 CFR 149.510(b)(1)(ii)(A)(1) will improve 
communication in open negotiation and assist parties in correctly 
identifying the other party to engage during open negotiation. Further, 
the requirement to provide information sufficient to identify the plan 
or issuer, including the plan's or issuer's registration number, would 
not add undue burden since the registration number will be provided on 
the remittance advice associated with the initial payment or notice of 
denial of payment for the item or service and would provide the benefit 
of access to validated contact information from the plan or issuer. In 
the Departments' experience implementing the Federal IDR process, 
providers have struggled to identify the correct plan or issuer on 
documentation associated with the initial payment or the notice of 
denial of payment. The registry requirement, discussed in section II.F 
of this preamble, and associated registration number will help the 
provider accurately identify and contact the appropriate plan or issuer 
to initiate open negotiation, particularly if the plan or issuer fails 
to clearly disclose such information with its initial payment or denial 
of payment.
    At 26 CFR 54.9816-8(b)(1)(ii)(A)(2), 29 CFR 2590.716-
8(b)(1)(ii)(A)(2), and 45 CFR 149.510(b)(1)(ii)(A)(2), the Departments 
proposed that, in the event the plan or issuer is not registered by the 
time the provider, facility, or provider of air ambulance services 
initiates the open negotiation period, the party submitting the open 
negotiation notice must attest that the party receiving the open 
negotiation notice was not registered prior to the date the party 
submitted its open negotiation notice, and would use the contact 
information currently required by the disclosure requirements for the 
initial payment or notice of denial of payment in sections 26 CFR 
54.9816-6T(d)(1)(v), 29 CFR 2590.716-6(d)(1)(v), and 45 CFR 
149.140(d)(1)(v) to complete the open negotiation notice.\65\ The 
Departments are finalizing paragraph (b)(1)(ii)(A)(2) with a 
modification that,

[[Page 33918]]

if the party submitting the open negotiation notice does not include a 
registration number in the open negotiation notice, it must provide an 
attestation that the plan's or issuer's registration number was not 
provided on any remittance advice associated with the initial payment 
or notice of denial of payment for the item or service. This 
modification places appropriate responsibility on the provider as it 
requires them to attest only to something about which they have direct 
knowledge (that is, whether the remittance advice contained the plan's 
or issuer's registration number, rather than whether the plan or issuer 
registered). Additionally, the Departments recognize that not all self-
insured group health plans will have a legal business name, and to 
ensure that a legal business name is captured in such cases, are 
finalizing a modification to require the open negotiation notice to 
include the legal business name of the plan sponsor in the case the 
party submitting the open negotiation notice is a self-insured group 
health plan that does not have a legal business name.
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    \65\ The contact information currently required under 26 CFR 
54.9816-6T(d)(1)(v), 29 CFR 2590.716-6(d)(1)(v), and 45 CFR 
149.140(d)(1)(v) is ``[c]ontact information, including a telephone 
number and email address, for the appropriate person or office to 
initiate open negotiations for purposes of determining an amount of 
payment (including cost sharing) for such item or service.''
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    In addition, some commenters provided feedback on the requirement 
to provide information sufficient to identify the item or service under 
proposed 26 CFR 54.9816-8(b)(1)(ii)(A)(4), 29 CFR 2590.716-
8(b)(1)(ii)(A)(4), and 45 CFR 149.510(b)(1)(ii)(A)(4). They stated that 
this proposal would help the negotiating parties identify the item or 
service subject to the open negotiation. A few commenters noted that 
the requirement to provide the claim number would support the correct 
and timely identification of the item or service subject to 
negotiation. The Departments agree with the commenters' feedback.
    Several commenters supported the proposal requiring that the open 
negotiation notice include the initial payment amount, the QPA, and the 
amount of cost-sharing related to the item or service subject to open 
negotiation under 26 CFR 54.9816-8(b)(1)(ii)(A)(5), (6), and (8), 29 
CFR 2590.716-8(b)(1)(ii)(A)(5), (6), and (8), and 45 CFR 
149.510(b)(1)(ii)(A)(5), (6), and (8), respectively. A few commenters 
supported requiring disclosure of the amount of cost sharing if the 
party submitting the open negotiation notice is a plan or issuer. A few 
commenters generally supported the proposal to disclose the QPA on the 
open negotiation notice, if provided with the initial payment or notice 
of denial of payment, while several other commenters opposed it. 
Commenters that opposed this proposal also noted that since the plan or 
issuer already has the QPA, the provision of this information is 
duplicative and unnecessary. Further, a few commenters indicated that 
requiring submission of the QPA with an offer for a different out-of-
network rate inappropriately signals that the QPA is the most relevant 
factor in determining the out-of-network rate during open negotiation. 
One commenter noted that the Departments should only allow plans or 
issuers to submit the QPA amount on the remittance advice or provide it 
upon request.
    For 26 CFR 54.9816-8(b)(1)(ii)(A)(6) and (8), 29 CFR 2590.716-
8(b)(1)(ii)(A)(6) and (8), and 45 CFR 149.510(b)(1)(ii)(A)(6) and (8), 
the Departments maintain that submitting the QPA and the amount of cost 
sharing in the open negotiation notice will support parties in their 
efforts to negotiate an out-of-network rate and enhance their awareness 
of factors considered during the Federal IDR process, if they choose to 
initiate. In particular, because the amount of cost sharing for a 
qualified IDR item or service is determined by the QPA, requiring the 
amount of cost sharing paid or owed by the participant, beneficiary, or 
enrollee could support parties in making informed offers while 
negotiating. As discussed below, an open negotiation response notice 
provided by a plan or issuer must state either that the QPA reflected 
in the open negotiation notice accurately reflects the QPA disclosed 
with the initial payment for the item or service, or if not, state the 
QPA it believes to be correct, and documentation to support the 
statement (for example, the remittance advice confirming the QPA). 
Therefore, requiring the QPA to be disclosed on the open negotiation 
notice will facilitate better communication between parties in 
identifying whether there may be a mistake in the identified QPA, such 
as a typographical error or the incorrect use of the cost sharing 
amount rather than the QPA, so that the potential initiating party has 
the correct information before initiating the Federal IDR process. The 
purpose of including this element on the open negotiation notice is not 
to provide the plan or issuer with new information, but rather to 
provide an opportunity for the plan or issuer to validate that the 
provider or facility has identified the correct value as the QPA, or 
provide a correction on the open negotiation response notice as needed. 
This exchange of information is important to establish a common 
understanding of the item or service.
    In addition, the inclusion of the QPA on the open negotiation 
notice would not signal that the QPA has disproportionate significance 
in determining an out-of-network rate. The amount of the offers made 
during the open negotiation period are determined by the parties 
engaged in negotiations. The Departments do not seek to restrict those 
offers or imply that the parties should consider the QPA in negotiating 
an out-of-network rate. Rather, the inclusion of the QPA in the open 
negotiation notice mirrors the requirement to submit the QPA as part of 
the notice of IDR initiation, which is required because certified IDR 
entities are required to consider the QPA when making a payment 
determination. Because the QPA is relevant to the payment determination 
and must be included in the notice of IDR initiation, it should be 
included in the open negotiation notice as well to facilitate 
negotiations.
    Some commenters supported the proposal to require a copy of any 
remittance advice associated with the initial payment or notice of 
denial of payment for the item or service to be included in the open 
negotiation notice at proposed 26 CFR 54.9816-8(b)(1)(ii)(A)(12), 29 
CFR 2590.716-8(b)(1)(ii)(A)(12), and 45 CFR 149.510(b)(1)(ii)(A)(12). 
These commenters indicated that such a requirement would support the 
timely identification of the items and services subject to open 
negotiation and enable the party in receipt of the open negotiation 
notice to comply with response deadlines. One of these commenters also 
suggested that the Departments clarify that all pages of the remittance 
advice must be submitted, as the remark codes are often located at the 
end of the document. Several commenters opposed the requirement to 
submit copies of payment documents with the open negotiation notice, 
asserting that they are difficult to obtain and administratively 
burdensome to extract and provide. One of these commenters suggested 
that if the Departments finalize the requirement to provide a copy of 
the remittance advice, then the party should not have to manually enter 
the details of each item or service into the Federal IDR portal as a 
means of balancing the overall burden associated with submission. A few 
of the commenters that opposed this requirement noted that the 
Departments did not explain in the 2023 proposed rules how the uploaded 
documents would be used, and suggested that, if necessary, the 
Departments should require only plans and issuers to provide this 
documentation, as they originate the documents and have access to the 
information.

[[Page 33919]]

    For 26 CFR 54.9816-8(b)(1)(ii)(A)(12), 29 CFR 2590.716-
8(b)(1)(ii)(A)(12), and 45 CFR 149.510(b)(1)(ii)(A)(12), provision of 
the remittance advice associated with the initial payment or notice of 
denial of payment for the item or service will support the shared 
understanding of the items and services being negotiated and their 
eligibility for the Federal IDR process. Further, the provision of this 
documentation will reduce confusion and miscommunication between the 
parties during open negotiation. In the Departments' experience, many 
plans and issuers are unable to identify the claims submitted by 
providers during open negotiation. Requiring disputing parties to 
include a copy of the remittance advice with the open negotiation 
notice will enable the party in receipt of the open negotiation notice 
to quickly identify the item or service subject to negotiation. The 
exchange of this documentation will also support the goal of reducing 
ineligible disputes, as the required disclosures will contain 
information allowing parties to determine whether an item or service is 
eligible for the Federal IDR process during open negotiation.
    The Departments disagree with the commenters' assertion that 
submission of the remittance advice document with the open negotiation 
notice should not be finalized because they are difficult to extract 
and provide. The party initiating the open negotiation process should 
be prepared to provide the payment details it has received on the items 
and services subject to negotiation, including the remittance advice. 
Therefore, the potential burden of providing the remittance advice does 
not outweigh the benefits of reducing confusion and miscommunication 
between parties during open negotiation. In addition, the Departments 
are aware that, currently under the Federal IDR process, providers 
regularly provide copies of remittance advice documents to certified 
IDR entities when needed to confirm eligibility. The purpose of 
requiring these documents at the open negotiation stage is to encourage 
parties to evaluate the eligibility of an item or service before 
initiation of the Federal IDR process. As described in section II.B.2 
of this preamble, these final rules require that remittance advice 
include disclosures supporting the accurate identification of whether 
items and services are subject to the No Surprises Act. Data from the 
2024 Federal IDR Public Use Files (PUF) reflect that parties continue 
to submit disputes for items and services that are ineligible for the 
Federal IDR process.\66\ Submission of remittance advice containing 
eligibility disclosures will ensure that both parties have access to 
information which clarifies the NSA's applicability to an item or 
service prior to initiating the Federal IDR process. After considering 
the comments received, the Departments maintain that the provision of 
the remittance advice during the open negotiation stage will improve 
the parties' understanding of IDR eligibility and reduce the submission 
of ineligible disputes. However, the Departments recognize that 26 CFR 
54.9816-8(b)(1)(ii)(A)(12), 29 CFR 2590.716-8(b)(1)(ii)(A)(12), and 45 
CFR 149.510(b)(1)(ii)(A)(12), as proposed could have been interpreted 
to require only the initial payment or notice of denial of payment. 
Therefore, the Departments are finalizing a modification to the 
proposal by requiring a copy of any remittance advice associated with 
the initial payment or notice of denial of payment for the item or 
service, rather than a copy of the initial payment or notice of denial 
of payment or other remittance advice that includes the required 
disclosures.
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    \66\ According to data published in the IDR PUF for quarters 1 
and 2 of 2025, 17 percent of closed disputes were closed by a 
certified IDR entity due to ineligibility. See <a href="https://www.cms.gov/nosurprises/policies-and-resources/reports">https://www.cms.gov/nosurprises/policies-and-resources/reports</a>.
---------------------------------------------------------------------------

    Finally, a few commenters offered additional recommendations 
regarding the content of the open negotiation notices. Such additional 
recommendations were beyond the scope of these final rules, but the 
Departments agree that provision of this information may enhance 
communication about the value of the services in the open negotiation 
process and encourage disputing parties to discuss such information in 
open negotiation if they so choose.
    After consideration of comments, the Departments are finalizing the 
required elements on the open negotiation notice as proposed, with two 
exceptions. The Departments are modifying 26 CFR 54.9816-
8(b)(1)(ii)(A)(2), 29 CFR 2590.716-8(b)(1)(ii)(A)(2), and 45 CFR 
149.510(b)(1)(ii)(A)(2) in three ways:
    (1) regarding the information sufficient to identify a plan or 
issuer, to remove the language ``if the plan or issuer is registered 
under'' Sec.  54.9816-9, Sec.  2590.716-9, and Sec.  149.530; (2) to 
require, when applicable, that the party submitting the open 
negotiation notice attest that the plan or issuer's registration number 
was not provided on any remittance advice, rather than attest that the 
plan or issuer was not registered prior to the date the open 
negotiation notice was submitted; and (3) to require the open 
negotiation notice to include the legal business name of the plan 
sponsor when the entity furnishing the open negotiation notice is a 
self-insured group health plan that does not have a legal business 
name.
    At 26 CFR 54.9816-8(b)(1)(ii)(A)(12), 29 CFR 2590.716-
8(b)(1)(ii)(A)(12), and 45 CFR 149.510(b)(1)(ii)(A)(12) the Departments 
are modifying the proposal by requiring the open negotiation notice to 
include a copy of any remittance advice associated with the initial 
payment or notice of denial of payment for the item or service, rather 
than a copy of the initial payment or notice of denial of payment or 
other remittance advice that includes the required disclosures. 
Therefore, the elements required as finalized are:
    (1) Information sufficient to identify the provider, facility, or 
provider of air ambulance services, including the name and current 
contact information (including the legal business name, email address, 
phone number, and mailing address) as provided with the claim form 
submitted by the provider, facility, or air ambulance provider to the 
plan or issuer, and the applicable National Provider Identifier (NPI);
    (2) Information sufficient to identify the plan or issuer, 
including the plan's or issuer's registration number, as required under 
Sec.  54.9816-9, Sec.  2590.716-9, and Sec.  149.530, or an attestation 
from the party submitting the open negotiation notice that the plan or 
issuer's registration number was not provided on any remittance advice 
associated with the initial payment or notice of denial of payment for 
the item or service; the legal business name of the plan or issuer (or, 
in the case of a self-insured group health plan that does not have a 
legal business name, the legal business name of the plan sponsor), as 
well as the current contact information (name, email address, phone 
number, and mailing address) of the plan or issuer as provided with any 
remittance advice associated with the initial payment or notice of 
denial of payment for the item or service; and if the party submitting 
the open negotiation notice is a plan or issuer, the plan type (for 
example, self-insured or fully-insured);
    (3) The name and contact information (including the legal business 
name, email address, phone number, and mailing address) for any third 
party representing the party submitting the open negotiation notice, 
and an attestation that the third party has the authority to act on 
behalf of the party it represents in the open negotiation;

[[Page 33920]]

    (4) Information sufficient to identify the item or service, 
including: the date(s) the item or service was furnished and, if the 
party submitting the open negotiation notice is a provider, facility, 
or provider of air ambulance services, the date(s) that the provider, 
facility, or provider of air ambulance services received the initial 
payment or notice of denial of payment for the item or service from the 
plan or issuer; the type of item or service (specifically, whether the 
item or service is an emergency service as defined in Sec.  54.9816-
4T(c)(2)(i) or (ii), Sec.  2590.716-4(c)(2)(i) or (ii), and Sec.  
149.110(c)(2)(i) or (ii), a non-emergency service as described in Sec.  
54.9816-5T(b), Sec.  2590.716-5(b), and Sec.  149.120(b), or an air 
ambulance service as defined in Sec.  54.9816-3T, Sec.  2590.716-3, and 
Sec.  149.30); whether the service is a professional service or 
facility-based service; the State where the item or service was 
furnished; the claim number; the service code; and information to 
identify the location where the item or service was furnished (such as, 
place of service code or bill type code);
    (5) The initial payment amount (including $0 if payment is denied);
    (6) The qualifying payment amount, if provided in a remittance 
advice associated with the initial payment or notice of denial of 
payment, or if the party submitting the open negotiation notice is a 
plan or issuer;
    (7) An offer of an out-of-network rate for each item or service;
    (8) If the party submitting the open negotiation notice is a plan 
or issuer, the amount of cost sharing imposed for the item or service, 
if any;
    (9) If the party submitting the open negotiation notice is a 
provider or facility, a statement that the items and services do not 
qualify for the notice and consent exception described at 45 CFR 
149.410(b) or 45 CFR 149.420(c) through (i);
    (10) A statement that the provider, facility, or provider of air 
ambulance services was a nonparticipating provider, nonparticipating 
emergency facility, or nonparticipating provider of air ambulance 
services on the date the item or service was furnished;
    (11) General information listed in the standard open negotiation 
notice developed by the Secretary pursuant to paragraph (b)(3) of this 
section describing the open negotiation period and the Federal IDR 
process (including a description of the purpose of the open negotiation 
period and Federal IDR process and key deadlines in the open 
negotiation period and Federal IDR process); and
    (12) A copy of any remittance advice associated with the initial 
payment or notice of denial of payment for the item or service.
    Finally, the Departments solicited comment on whether the party 
submitting the open negotiation notice should be required to provide a 
statement describing why the party is initiating the open negotiation 
period, including any of the considerations for certified IDR entity 
determinations currently described in 29 CFR 2590.716-8(c)(4)(iii) and 
2590.717-2(b)(2) and 45 CFR 149.510(c)(4)(iii) and 149.520(b)(2). A few 
commenters supported requiring the party submitting the open 
negotiation notice to provide a statement describing why they are 
pursuing open negotiation, while several commenters opposed the 
proposal, stating that it is burdensome and unnecessary. Several of 
these commenters noted that providers generally pursue open negotiation 
because they are getting reimbursed at a rate below sustainable market 
clearing rates. One commenter cautioned that any statement regarding 
their rationale for negotiating should not bind the party in question, 
and that parties must be allowed to change their assessment of the 
dispute as information is exchanged. Another commenter noted that 
requiring such a statement would impose an additional barrier to 
accessing open negotiation and is beyond the Departments' authority to 
impose.
    After consideration of these comments, the Departments are not 
adding a requirement for a party to include on the open negotiation 
notice a statement as to the party's reason for pursuing open 
negotiation. The Departments are persuaded by commenters' arguments 
that adding such a requirement would be burdensome and unnecessary, and 
that a party's assessment of a dispute may reasonably change between 
open negotiation and initiation of the Federal IDR process.
d. Open Negotiation Response Notice Content
    The Departments proposed at 26 CFR 54.9816-8(b)(1)(iii)(A), 29 CFR 
2590.716-8(b)(1)(iii)(A), and 45 CFR 149.510(b)(1)(iii)(A) to require 
that the party receiving an open negotiation notice must provide a 
response to the open negotiation notice that would include the same 
information being finalized at 26 CFR 54.9816-8(b)(1)(ii)(A)(1) through 
(3), 29 CFR 2590.716-8(b)(1)(ii)(A)(1) through (3), and 45 CFR 
149.510(b)(1)(ii)(A)(1) through (3), which require that the party 
initiating open negotiation provide contact information sufficient to 
identify the provider, facility, or provider of air ambulance services; 
information sufficient to identify the plan or issuer; and the name and 
contact information for any third party representing a party in the 
open negotiation. The Departments further proposed that the open 
negotiation response notice would also include the following 
information under proposed 26 CFR 54.9816-8(b)(1)(iii)(A)(4) through 
(11), 29 CFR 2590.716-8(b)(1)(iii)(A)(4) through (11), and 45 CFR 
149.510(b)(1)(iii)(A)(4) through (11):
    (4) Information sufficient to identify the item or service included 
in the open negotiation notice, including the date(s) the item or 
service was furnished, and if the party submitting the open negotiation 
response notice is a provider, facility, or provider of air ambulance 
services, the date(s) that the provider, facility, or provider of air 
ambulance services received the initial payment or notice of denial of 
payment for such item or service from the plan or issuer, and the claim 
number;
    (5) If the party submitting the open negotiation response notice is 
a plan or issuer, a statement as to whether it agrees that the initial 
payment amount (including $0 if, for example, payment is denied) and 
the qualifying payment amount reflected in the open negotiation notice 
accurately reflects the initial payment amount and qualifying payment 
amount disclosed with the initial payment for the item or service, and 
if not, or if the open negotiation notice indicates that the initial 
payment amount or qualifying payment amount was not communicated by the 
plan or issuer with the initial payment or notice of denial of payment 
or other remittance advice, the initial payment amount (including $0 
if, for example, payment is denied) and/or qualifying payment amount it 
believes to be correct, and documentation to support the statement (for 
example, the remittance advice confirming the qualifying payment 
amount);
    (6) If the party in receipt of the open negotiation notice is a 
plan or issuer, the amount of cost sharing imposed for the item or 
service, if any;
    (7) A counteroffer of an out-of-network rate for each item or 
service or an acceptance of the other party's offer;
    (8) If the party submitting the open negotiation response notice is 
a provider or facility, a statement that the items and services do not 
qualify for the notice and consent exception described at 45 CFR 
149.410(b) or 149.420(c) through (i);

[[Page 33921]]

    (9) With respect to each item or service, either a statement and 
supporting documentation that explains why the item or service is not 
subject to the Federal IDR process or a statement agreeing that the 
item or service is subject to the Federal IDR process;
    (10) A statement as to whether any of the information provided in 
the open negotiation notice is inaccurate and the basis for the 
statement, as well as supporting documentation; and
    (11) A statement confirming that the initial payment or notice of 
denial of payment or other remittance advice provided by the party 
submitting the open negotiation notice under paragraph 
(b)(1)(ii)(A)(12) of this section is accurate, and if inaccurate, a 
copy of the accurate initial payment or notice of denial of payment or 
other remittance advice required to include the disclosures under Sec.  
54.9816-6(d)(1), Sec.  54.9816-6T(d)(1), Sec.  2590.716-6(d)(1), and 
Sec.  149.140(d)(1), for the item or service.
    The Departments sought comment on the content elements of the open 
negotiation response notice, including the proposed requirement to 
submit a counteroffer for an out-of-network rate for the item or 
service or a statement accepting the other party's offer on the open 
negotiation response notice. Specifically, the Departments sought 
comment on whether it would hinder meaningful negotiation between the 
parties outside the Federal IDR portal, or whether it would promote 
negotiation among parties that might otherwise not negotiate.
    After consideration of comments, the Departments are finalizing as 
proposed the requirements for an open negotiation response notice at 26 
CFR 54.9816-8(b)(1)(iii)(A), 29 CFR 2590.716-8(b)(1)(iii)(A), and 45 
CFR 149.510(b)(1)(iii)(A), with two exceptions. The Departments are 
finalizing the proposal at 26 CFR 54.9816-8(b)(1)(iii)(A)(2), 29 CFR 
2590.716-8(b)(1)(iii)(A)(2), and 45 CFR 149.510(b)(1)(iii)(A)(2) with 
three modifications: (1) regarding the information sufficient to 
identify a plan or issuer, to remove the language ``if the plan or 
issuer is registered under'' Sec.  54.9816-9, Sec.  2590.716-9, and 
Sec.  149.530; (2) to require, when applicable, that the party 
submitting the open negotiation response notice attest that the plan or 
issuer's registration number was not provided on any remittance advice, 
rather than attest that the plan or issuer was not registered prior to 
the date the open negotiation response notice was submitted; and (3) to 
require the open negotiation response notice to include the legal 
business name of the plan sponsor when the entity furnishing the open 
negotiation notice is a self-insured group health plan that does not 
have a legal business name. The Departments are also declining to 
finalize the proposed requirement at 26 CFR 54.9816-8(b)(1)(iii)(A)(7), 
29 CFR 2590.716-8(b)(1)(iii)(A)(7), and 45 CFR 149.510(b)(1)(iii)(A)(7) 
that an open negotiation response notice include a counteroffer of an 
out-of-network rate for each item or service or an acceptance of the 
other party's offer. The Departments did not receive comments on the 
proposed required elements on the open negotiation response notice at 
26 CFR 54.9816-8(b)(1)(iii)(A)(1), (4), (8), (10), and (11), 29 CFR 
2590.716-8(b)(1)(iii)(A)(1), (4), (8), (10), and (11), and 45 CFR 
149.510(b)(1)(iii)(A)(1), (4), (8), (10), and (11), and therefore are 
finalizing as proposed. The Departments are finalizing the proposed 
elements at 26 CFR 54.9816-8(b)(1)(iii)(A)(8) through (11), 29 CFR 
2590.716-8(b)(1)(iii)(A)(8) through (11), and 45 CFR 
149.510(b)(1)(iii)(A)(8) through (11) at redesignated 26 CFR 54.9816-
8(b)(1)(iii)(A)(7) through (10), 29 CFR 2590.716-8(b)(1)(iii)(A)(7) 
through (10), and 45 CFR 149.510(b)(1)(iii)(A)(7) through (10).
    Many commenters generally supported the proposed required elements 
on the open negotiation response notice, and one commenter opposed the 
requirement to provide the notice altogether. Of those in support, a 
few indicated that requiring the proposed elements would encourage 
meaningful exchange between parties during the open negotiation period. 
A few commenters stated concern regarding the additional burden and 
cost to the responding party, and one suggested narrowing the required 
elements to a subset of the proposed content or providing clear 
templates and guidance for parties on how to submit the required 
information. Some commenters provided feedback on specific content 
elements, as described in greater detail below.
    Several commenters supported the proposal under 26 CFR 54.9816-
8(b)(1)(iii)(A)(2), 29 CFR 2590.716-8(b)(1)(iii)(A)(2), and 45 CFR 
149.510(b)(1)(iii)(A)(2) to require the identification of the plan type 
on the open negotiation response notice if the party submitting the 
open negotiation response notice is a plan or issuer. Commenters noted 
that this element would help providers correctly identify the plan type 
as fully-insured or self-insured. One commenter recommended the 
Departments clarify that any required field which relates to 
identifying a group health plan is applicable only in the case of a 
self-insured group health plan, as the identity of the group health 
plan is not relevant to the Federal IDR process if the plan is fully-
insured. Another commenter supported the requirements under proposed 26 
CFR 54.9816-8(b)(1)(iii)(A)(2) and (3), 29 CFR 2590.716-
8(b)(1)(iii)(A)(2) and (3), and 45 CFR 149.510(b)(1)(iii)(A)(2) and (3) 
to provide enhanced contact information on the open negotiation 
response notice.
    The Departments agree that the collection of plan or issuer 
information generally, including information regarding any third party 
representing a plan or issuer, will improve the exchange of accurate 
information prior to initiation of the Federal IDR process. In 
particular, providers receiving correct information during open 
negotiation about group health plans' fully-insured or self-insured 
status will help them to determine whether disputed items and services 
are eligible for a State or Federal process, and, if eligible for the 
Federal process, enable them to batch correctly. Since this is the only 
proposed field that would identify group health plans as such, the 
Departments maintain that this piece of information should be included 
in the open negotiation response notice. Additionally, the Departments 
acknowledge that the requirement to provide a legal business name may 
apply slightly differently to fully-insured group health plans and 
self-insured group health plans, and therefore are finalizing a 
modification at 26 CFR 54.9816-8(b)(1)(iii)(A)(2), 29 CFR 2590.716-
8(b)(1)(iii)(A)(2), and 45 CFR 149.510(b)(1)(iii)(A)(2) to require 
group health plans to provide their own legal business name, unless 
they are a self-insured group health plan without a legal business 
name, in which case they must provide the legal business name of its 
plan sponsor. In alignment with the required elements for the open 
negotiation notice, the Departments are also finalizing paragraph 
(b)(1)(iii)(A)(2) with a modification to require, when applicable, that 
the party submitting the open negotiation response notice attest that 
the plan or issuer's registration number was not provided on any 
remittance advice, rather than attest that the plan or issuer was not 
registered prior to the date the open negotiation response notice was 
submitted. The Departments are finalizing 26 CFR 54.9816-
8(b)(1)(iii)(A)(3), 29 CFR 2590.716-8(b)(1)(iii)(A)(3), and 45 CFR 
149.510(b)(1)(iii)(A)(3) as proposed.
    A few commenters supported the requirement at 26 CFR 54.9816-
8(b)(1)(iii)(A)(5), 29 CFR 2590.716-

[[Page 33922]]

8(b)(1)(iii)(A)(5), and 45 CFR 149.510(b)(1)(iii)(A)(5) that, if the 
open negotiation notice indicates that the QPA was not communicated by 
the plan or issuer with the initial payment or notice of denial of 
payment or other remittance advice, the responding party (if a plan or 
issuer) must indicate the QPA it believes to be correct, and provide 
documentation to support the statement (for example, the remittance 
advice confirming the QPA). These commenters stated that the QPA is 
sometimes misunderstood or miscommunicated between the parties. Several 
commenters recommended amendments to the proposed collection of the QPA 
on the open negotiation response notice. One suggested that if the QPA 
is not provided with the initial payment or notice of denial of 
payment, the non-initiating party must provide the QPA related to the 
claim to the Departments and the provider on the open negotiation 
response notice. A few other commenters recommended adding the QPA 
methodology to the response notice. One of these commenters further 
recommended that the response notice include a certification that the 
QPA has been calculated in accordance with the regulations invalidated 
by TMA III.\67\
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    \67\ Tex. Med. Ass'n v. U.S. Dep't of Health & Hum. Servs., Case 
No. 6:22-cv-450-JDK (E.D. Tex. August 24, 2023), Tex. Med. Ass'n v. 
U.S. Dep't of Health & Hum. Servs., 120 F.4th 494 (5th Cir. 2024), 
and Tex. Med. Ass'n v. U.S. Dep't of Health & Hum. Servs., Case No. 
23-40605 (5th Cir. May 30, 2025).
---------------------------------------------------------------------------

    The Departments agree that the requirement to confirm the accuracy 
of the QPA will assist parties in understanding the QPA and the details 
of the claim prior to initiating the Federal IDR process. The 
Departments also agree with commenters who highlighted the importance 
of ensuring providers receive an accurate QPA, even if one was not 
included with the initial payment, notice of denial of payment, or 
other remittance advice. For that reason, the Departments proposed at 
26 CFR 54.9816-8(b)(1)(iii)(A)(5), 29 CFR 2590.716-8(b)(1)(iii)(A)(5), 
and 45 CFR 149.510(b)(1)(iii)(A)(5) that if the open negotiation notice 
does not accurately reflect the initial payment amount and qualifying 
payment amount disclosed with the initial payment for the item or 
service, or the initial payment amount or qualifying payment amount was 
not communicated by the plan or issuer in a remittance at alle, then 
the responding party (if a plan or issuer,) must provide the QPA it 
believes to be correct and provide documentation to support the QPA 
(for example, the remittance advice confirming the QPA). The goal of 
this requirement is to build mutual understanding of the claim, and to 
correct any mistakes made on the part of the party submitting the open 
negotiation notice. It is not intended to be an opportunity to 
recalculate or dispute the QPA or initial payment amount, which are 
established values and, in the case of the initial payment amount, may 
be addressed through the negotiation or the Federal IDR process. The 
Departments acknowledge commenters' recommendations to add the QPA 
methodology to the open negotiation response notice. However, as noted 
above, the Departments do not intend the sharing of QPA on the open 
negotiation response notice to provide an opportunity to dispute the 
QPA; rather, the purpose is simply to ensure each party is considering 
the same QPA during the open negotiation process. The Departments will 
rely on the existing agency processes, such as QPA audits, to ensure 
plans and issuers are calculating QPAs in accordance with the 
established methodology.
    One commenter supported the proposal to require, if the responding 
party is a plan or issuer, inclusion of the amount of cost sharing 
imposed for the item or service at issue under proposed 26 CFR 54.9816-
8(b)(1)(iii)(A)(6), 29 CFR 2590.716-8(b)(1)(iii)(A)(6), and 45 CFR 
149.510(b)(1)(iii)(A)(6). Another commenter identified a discrepancy 
between the proposed regulatory text about the open negotiation 
response notice at 26 CFR 54.9816-8(b)(1)(iii)(A)(6), 29 CFR 2590.716-
8(b)(1)(iii)(A)(6), and 45 CFR 149.510(b)(1)(iii)(A)(6), which requires 
submission of cost sharing ``imposed,'' whereas the relevant preamble 
language of the 2023 proposed rules \68\ references cost sharing ``paid 
or owed.'' This commenter requested clarification on this point because 
while plans and issuers would know and could report the cost-sharing 
imposed, providers are not in a position to know whether the cost-
sharing was paid or is owed.
---------------------------------------------------------------------------

    \68\ 88 FR 75744, 75767 (November 3, 2023).
---------------------------------------------------------------------------

    Several commenters supported the proposal to provide a counteroffer 
on the open negotiation response notice under proposed 26 CFR 54.9816-
8(b)(1)(iii)(A)(7), 29 CFR 2590.716-8(b)(1)(iii)(A)(7), and 45 CFR 
149.510(b)(1)(iii)(A)(7). These commenters stated that such a 
requirement would encourage participation in negotiations and prompt 
settlement prior to initiating the Federal IDR process. A few others 
noted that it would create a clear record of the parties' negotiation 
positions for certified IDR entities. Relatedly, a few supportive 
commenters recommended certain parameters on the provision of the 
counteroffers, including that final offers during the Federal IDR 
process should not be allowed to be more than 10 percent higher than 
offers submitted during open negotiation. Another commenter recommended 
that the open negotiation response notice permit the responding party 
to describe its methodology for arriving at a counteroffer, such as 
reimbursement calculations, and its sources of information.
    Several other commenters opposed requiring a counteroffer on the 
open negotiation response notice. Some commenters noted that the 
counteroffer is not required under statute and imposing such a 
requirement exceeds the Departments' authority, with one of these 
commenters also stating that this requirement could encourage gaming. 
Another commenter suggested that the Departments finalize this field as 
optional, rather than required, to align with statutory authority. A 
few commenters also stated concerns that such an amount would devalue 
the QPA. Commenters stated that the QPA or the initial payment amount 
should always be considered the counteroffer on the part of the plan or 
issuer. One commenter noted that all offers should be constrained by 
the QPA. Some commenters stated concerns about the certified IDR 
entity's ability to see a counteroffer provided during open negotiation 
for disputes later submitted to the Federal IDR process. These 
commenters noted that negotiations should be kept private and only 
limited information should be available to the certified IDR entities 
through the Federal IDR portal. A few commenters stated that the 
Departments should not have access to negotiation information.
    The Departments appreciate the support for the inclusion of the 
amount of cost sharing imposed for the item or service at issue, if the 
responding party is a plan or issuer, under proposed 26 CFR 54.9816-
8(b)(1)(iii)(A)(6), 29 CFR 2590.716-8(b)(1)(iii)(A)(6), and 45 CFR 
149.510(b)(1)(iii)(A)(6). The Departments clarify that regarding the 
discrepancy between cost sharing ``paid or owed'' in the preamble to 
the 2023 proposed rules \69\ and ``imposed'' in the regulation, the 
latter was the intent of the Departments. As a result, the Departments 
are finalizing this requirement at 26 CFR 54.9816-8(b)(1)(iii)(A)(6), 
29 CFR 2590.716-8(b)(1)(iii)(A)(6), and 45 CFR 149.510(b)(1)(iii)(A)(6) 
as proposed.
---------------------------------------------------------------------------

    \69\ 88 FR 75744, 75767 (November 3, 2023).
---------------------------------------------------------------------------

    As stated above, the Departments are not finalizing the proposed 
requirement to provide a counteroffer of an out-of-

[[Page 33923]]

network rate for each item or service or an acceptance of the other 
party's offer under proposed 26 CFR 54.9816-8(b)(1)(iii)(A)(7), 29 CFR 
2590.716-8(b)(1)(iii)(A)(7), and 45 CFR 149.510(b)(1)(iii)(A)(7). The 
Departments understand commenters' concerns about the private nature of 
negotiations and agree that neither the Departments nor certified IDR 
entities need to see the details of the parties' negotiations. The 
Departments also understand that the provision of this additional 
information would constitute an additional burden on non-initiating 
parties. As such, the Departments are not finalizing the requirement to 
provide a counteroffer in the open negotiation response notice. The 
Departments note that the parties may share counteroffers via their 
preferred method of communication during open negotiation, but need not 
do so at all, or, if they chose to do so, need not use the Federal IDR 
portal.
    Several commenters supported the proposal under 26 CFR 54.9816-
8(b)(1)(iii)(A)(9), 29 CFR 2590.716-8(b)(1)(iii)(A)(9), and 45 CFR 
149.510(b)(1)(iii)(A)(9) to require a statement on whether and why the 
item or service subject to open negotiation is or is not eligible for 
the Federal IDR process. A few commenters noted that it is most useful 
to require this exchange of information during the open negotiation 
period because it can prevent the initiation of ineligible disputes. 
One commenter in support of the requirement suggested that if a 
responding party fails to raise eligibility concerns (and support them 
with documentation), any eligibility objections raised by that party 
during the Federal IDR process should be waived to encourage 
identification of ineligible items and services prior to IDR initiation 
and to eliminate time-consuming follow up performed by certified IDR 
entities in response to eligibility objections raised during the 
Federal IDR process. One commenter opposed the use of eligibility 
information submitted during the open negotiation period to prevent a 
party from initiating the Federal IDR process. Another commenter 
requested that the Departments clarify what ``supporting 
documentation'' under 26 CFR 54.9816-8(b)(1)(iii)(A)(9), 29 CFR 
2590.716-8(b)(1)(iii)(A)(9), and 45 CFR 149.510(b)(1)(iii)(A)(9) would 
be required on the part of the responding party and stated that only 
previously unavailable information would be useful, while submitting an 
EOB which is already available to both parties would not be productive. 
This commenter suggested that the Departments require supporting 
documentation such as an explanation of the QPA calculation, 
eligibility concerns, or reasons why the non-initiating party believes 
the Federal IDR process does not apply. Another commenter requested 
that the Departments specify in greater detail documentation that would 
adequately support an assertion that the 90-day cooling off period was 
in effect for an item or service.
    The requirement under 26 CFR 54.9816-8(b)(1)(iii)(A)(9), 29 CFR 
2590.716-8(b)(1)(iii)(A)(9), and 45 CFR 149.510(b)(1)(iii)(A)(9) to 
provide a statement as to whether the item and service subject to 
negotiation are eligible for the Federal IDR process and supporting 
documentation during open negotiation will enhance the efficiency of 
the parties' communication and reduce the number of ineligible disputes 
entering the Federal IDR process. Recently published data reflects that 
parties continue to struggle to correctly identify the eligibility of 
items and services for the Federal IDR process.\70\ By requiring 
parties to exchange information during open negotiation on the 
eligibility of an item or service for the Federal IDR process prior to 
IDR initiation, both parties will benefit from a mutual understanding 
of eligibility which will aid them in pursuing negotiations and 
assessing the cost of participating in the Federal IDR process.
---------------------------------------------------------------------------

    \70\ According to the 2025 Federal IDR PUF, 40 percent of 
disputes initiated were challenged by the non-initiating party as 
ineligible. As mentioned above, 17 percent of disputes closed were 
closed due to ineligibility by a certified IDR entity. See: <a href="https://www.cms.gov/nosurprises/policies-and-resources/reports">https://www.cms.gov/nosurprises/policies-and-resources/reports</a>.
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    The Departments note that the provisions in these final rules 
requiring parties to submit a statement as to whether the items or 
services subject to negotiation are eligible for the Federal IDR 
process will not prevent a party from initiating the Federal IDR 
process for an ineligible item or service. While this information is 
intended to support disputing parties' determination of eligibility 
prior to the Federal IDR process and avoid initiating ineligible 
disputes, the provision of this information does not limit either 
party's ability to initiate the Federal IDR process. Certified IDR 
entities will make their own eligibility determinations based on the 
information provided to them via the notices of IDR initiation, 
initiation response, and certified IDR entity selection. As explained 
in section II.D.2.b of this preamble, eligibility objections can be 
raised in the notice of IDR initiation response, and the reason(s) for 
objective can vary from those raised during open negotiation. Further, 
the provision of supporting documentation is essential to the effective 
implementation of this requirement to allow non-initiating parties to 
substantiate an eligibility objection. In implementing the Federal IDR 
process, the Departments have learned that often when a non-initiating 
party objects to the eligibility of an item or service in its initial 
payment or notice of denial of payment, it does not provide sufficient 
information for the certified IDR entity or the other party to 
understand the basis for its objection, and when the non-initiating 
party submits documentation demonstrating ineligibility in the course 
of the current IDR process, the certified IDR entity may receive this 
information, but the initiating party may not. Therefore, the 
Departments will require the party sending the open negotiation 
response notice to provide both a statement regarding eligibility, and 
documentation that supports the statement, to the other party and the 
Departments.
    The Departments clarify that examples of such documentation could 
include, but are not limited to, a remittance advice with a RARC 
clarifying that an item or service is subject to a specified State law, 
an EOB reflecting an item or service is subject to payment by Medicare, 
or an external review decision reflecting an adverse benefit 
determination due to an item or service not being covered by the plan 
or issuer. However, these represent illustrative examples, as the 
Departments do not intend to restrict the types of documents a party 
may submit to corroborate that an item or service is not subject to the 
Federal IDR process.
    The Departments emphasize that if the Federal IDR process is 
initiated, the responding party is not confined to raising eligibility 
concerns in its open negotiation response notice. As explained in 
section II.D.2.b of this preamble, disputing parties can raise 
eligibility objections in the notice of IDR initiation response, and 
the reason(s) for objections can vary from those raised during open 
negotiation. The Departments are finalizing as proposed 26 CFR 54.9816-
8(b)(1)(iii)(A)(9), 29 CFR 2590.716-8(b)(1)(iii)(A)(9), and 45 CFR 
149.510(b)(1)(iii)(A)(9), but redesignating this provision as 26 CFR 
54.9816-8(b)(1)(iii)(A)(8), 29 CFR 2590.716-8(b)(1)(iii)(A)(8), and 45 
CFR 149.510(b)(1)(iii)(A)(8).
    The Departments are finalizing as proposed the requirements for an 
open negotiation response notice at 26 CFR 54.9816-8(b)(1)(iii)(A), 29 
CFR

[[Page 33924]]

2590.716-8(b)(1)(iii)(A), and 45 CFR 149.510(b)(1)(iii)(A), with two 
exceptions. The Departments are finalizing 26 CFR 54.9816-
8(b)(1)(iii)(A)(2), 29 CFR 2590.716-8(b)(1)(iii)(A)(2), and 45 CFR 
149.510(b)(1)(iii)(A)(2) with three modifications: (1) regarding the 
information sufficient to identify a plan or issuer, to remove the 
language ``if the plan or issuer is registered under'' Sec.  54.9816-9, 
Sec.  2590.716-9, and Sec.  149.530; (2) to require, when applicable, 
that the party submitting the open negotiation response notice attest 
that the plan or issuer's registration number was not provided on any 
remittance advice, rather than attest that the plan or issuer was not 
registered prior to the date the open negotiation response notice was 
submitted; and (3) to require the open negotiation response notice to 
include the legal business name of the plan sponsor when the entity 
furnishing the open negotiation notice is a self-insured group health 
plan that does not have a legal business name. At 26 CFR 54.9816-
8(b)(1)(iii)(A)(7), 29 CFR 2590.716-8(b)(1)(iii)(A)(7), and 45 CFR 
149.510(b)(1)(iii)(A)(7) the Departments are declining to finalize the 
proposed requirement to provide a counteroffer of an out-of-network 
rate for each item or service or an acceptance of the other party's 
offer. As a result, the Departments are redesignating 26 CFR 54.9816-
8(b)(1)(iii)(A)(8) through (11), 29 CFR 2590.716-8(b)(1)(iii)(A)(8) 
through (11), and 45 CFR 149.510(b)(1)(iii)(A)(8) through (11) as 26 
CFR 54.9816-8(b)(1)(iii)(A)(7) through (10), 29 CFR 2590.716-
8(b)(1)(iii)(A)(7) through (10), and 45 CFR 149.510(b)(1)(iii)(A)(7) 
through (10).
    Therefore, the elements required as finalized are:
    (1) Information sufficient to identify the provider, facility, or 
provider of air ambulance services, including the name and current 
contac

[…truncated; see source link]
Indexed from Federal Register on June 4, 2026.

This is legal information, not legal advice. Laws vary by jurisdiction and change frequently. Always verify current law with official sources and consult a licensed attorney in your jurisdiction for advice on your specific situation.