Notice2026-03351

Development of Guidance for Alternative Fuel Vehicles and Fueling Infrastructure Deployment Under the Clean School Bus Funding Programs

Primary source

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Published
February 20, 2026

Issuing agencies

Environmental Protection Agency

Abstract

The U.S. Environmental Protection Agency (EPA) is planning a new funding opportunity under the Clean School Bus (CSB) Program to encourage broad participation and fleet turnover by providing school districts with greater choice in school bus technology while strengthening oversight and compliance. To support the development of this new funding opportunity, the EPA invites public comments to inform the Agency's understanding of the availability of alternative fuels and associated technologies in the medium- and heavy-duty school bus sector. The EPA is committed to ensuring that all technologies covered by the definition of "clean school bus" in 42 U.S.C. 16091(a)(3) are included in a new funding opportunity later this year. In addition to seeking information on available alternative fuels and buses for the upcoming funding opportunity, the EPA is also seeking information from the public on additional ways the Agency can further safeguard taxpayer dollars. The EPA conducted a programmatic review of the previous CSB funding rounds and identified areas for enhanced controls. The EPA is interested in identifying additional ways to prevent waste, fraud, and abuse within the CSB Program and is requesting comment to ensure that the Agency has the most comprehensive information available regarding robust oversight and compliance.

Full Text

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<title>Federal Register, Volume 91 Issue 34 (Friday, February 20, 2026)</title>
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[Federal Register Volume 91, Number 34 (Friday, February 20, 2026)]
[Notices]
[Pages 8234-8239]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2026-03351]


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ENVIRONMENTAL PROTECTION AGENCY

[EPA-HQ-OAR-2025-1806; FRL-12979-01-OAR]


Development of Guidance for Alternative Fuel Vehicles and Fueling 
Infrastructure Deployment Under the Clean School Bus Funding Programs

AGENCY: Environmental Protection Agency (EPA).

ACTION: Notice; request for information (RFI).

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SUMMARY: The U.S. Environmental Protection Agency (EPA) is planning a 
new funding opportunity under the Clean School Bus (CSB) Program to 
encourage broad participation and fleet turnover by providing school 
districts with greater choice in school bus technology while 
strengthening oversight and compliance. To support the development of 
this new funding opportunity, the EPA invites public comments to inform 
the Agency's understanding of the availability of alternative fuels and 
associated technologies in the medium- and heavy-duty school bus 
sector. The EPA is committed to ensuring that all technologies covered 
by the definition of ``clean school bus'' in 42 U.S.C. 16091(a)(3) are 
included in a new funding opportunity later this year. In addition to 
seeking information on available alternative fuels and buses for the 
upcoming funding opportunity, the EPA is also seeking information from 
the public on additional ways the Agency can further safeguard taxpayer 
dollars. The EPA conducted a programmatic review of the previous CSB 
funding rounds and identified areas for enhanced controls. The EPA is 
interested in identifying additional ways to prevent waste, fraud, and 
abuse within the CSB Program and is requesting comment to ensure that 
the Agency has the most comprehensive information available regarding 
robust oversight and compliance.

DATES: Comments must be received on or before April 6, 2026. The EPA 
will host an informational webinar during which participants may also 
submit comments and questions. Details on the webinar, including the 
date and registration info, will be posted on the CSB website at 
<a href="http://www.epa.gov/cleanschoolbus">www.epa.gov/cleanschoolbus</a>.

ADDRESSES: You may submit your comments, identified by Docket ID No. 
EPA-HQ-OAR-2025-1806, by any of the following methods:
    <bullet> Federal eRulemaking Portal: Go to <a href="https://www.regulations.gov">https://www.regulations.gov</a> and follow the online instructions for submitting 
comments (preferred method);
    <bullet> Mail: U.S. Environmental Protection Agency, EPA Docket 
Center, OAR Docket ID No. EPA-HQ-OAR-2025-1806, Mail Code 28221T, 1200 
Pennsylvania Avenue NW, Washington, DC 20460;
    <bullet> Hand Delivery or Courier: EPA Docket Center, WJC West 
Building, Room 3334, 1301 Constitution Avenue NW, Washington, DC 20004. 
The Docket Center's hours of operation are 8:30 a.m.-4:30 p.m. EST., 
Monday-Friday, except Federal holidays.
    Instructions: All submissions received must include the Docket ID 
No. for this notice. Comments received may be posted without change to 
<a href="https://www.regulations.gov">https://www.regulations.gov</a>, including any personal information 
provided.

FOR FURTHER INFORMATION CONTACT: For information about this RFI, 
contact Alexander Paulos, Office of Transportation and Air Quality, via 
email at <a href="/cdn-cgi/l/email-protection#3e7b6e7f137d6d7c136c78777e5b4e5f10595148"><span class="__cf_email__" data-cfemail="e8adb8a9c5abbbaac5baaea1a88d9889c68f879e">[email&#160;protected]</span></a> or via phone at 202-564-9674. U.S. EPA, 
Room: WJC-North 5358D, Mail Code: 6406A, 1200 Pennsylvania Avenue NW, 
Washington, DC 20460.

SUPPLEMENTARY INFORMATION: In this request for information (RFI), the 
EPA provides a brief background on the CSB Program and describes five 
areas of interest: (1) Alternative Fuel School Buses; (2) Alternative 
Fuels for Use in School Buses; (3) Fueling Infrastructure for 
Alternative Fuels; (4) School Bus Industry Supply Chain and Purchasing 
Practices; and (5) Oversight and Fraud Prevention.
    The EPA is interested in comments detailing: (1) the availability, 
market price, and performance of alternative fuel school buses that 
operate entirely or in part on liquified natural gas (LNG), compressed 
natural gas (CNG), hydrogen, propane, or biofuels; (2) the 
availability, market price, and performance of LNG, CNG, hydrogen, 
propane, or biofuels with respect to school buses; (3) the 
availability, market price, and performance of associated alternative 
fueling infrastructure; (4) the need for school bus fleets to have 
dedicated fueling infrastructure when operating buses in their fleet on 
alternative fuels in the near term (i.e., within 1-5 years); and (5) 
ways that the EPA can enhance and expand grant

[[Page 8235]]

implementation tools and improve oversight methods.
    The EPA also invites comment on other aspects of the school bus 
industry, including supply chain timelines for alternative fuel school 
buses and standard purchasing practices for school bus orders, such as 
down payment expectations. The EPA seeks suggestions to bolster 
oversight across the CSB Program and to protect Federal investment and 
responsibly manage awards.
    This RFI then requests comment on each of these areas of interest. 
This RFI also includes guidance on submitting comments, procedures for 
submitting Confidential Business Information (CBI), and where to find 
additional information.
    In this RFI, the EPA is not soliciting similar information on 
technology or fueling infrastructure for zero-emission buses as the 
Agency already has sufficient information on the availability and 
performance of zero-emission school buses.

Preamble Acronyms and Abbreviations

    Throughout this preamble, the use of ``we,'' ``us,'' or ``our'' is 
intended to refer to the EPA. We use multiple acronyms and terms in 
this RFI. We use multiple acronyms and terms in this RFI. While this 
list may not be exhaustive, to ease the reading of this RFI and for 
reference purposes, the EPA defines the following terms and acronyms 
here:

B20 Biodiesel 20 percent
CBI Confidential Business Information
CNG Compressed Natural Gas
CSB Clean School Bus
E85 Ethanol 85 percent
EPA Environmental Protection Agency
FOIA Freedom of Information Act
GVWR Gross Vehicle Weight Rating
IIJA Infrastructure Investment and Jobs Act
LNG Liquified Natural Gas
RFI Request for Information

Table of Contents

I. Responding to This RFI
II. Background
    A. Alternative Fuel School Buses
    B. Alternative Fuels
    C. Fueling Infrastructure
    D. School Bus Industry Supply Chain and Purchasing Practices
    E. Oversight and Fraud Prevention
III. Request for Comments and Information
    A. Alternative Fuel School Buses
    B. Alternative Fuels for Use in School Buses
    C. Fueling Infrastructure for Alternative Fuels
    D. School Bus Industry Supply Chain and Purchasing Practices
    E. Oversight and Fraud Prevention

I. Responding to This RFI

    Please indicate in your written comments the topic number(s) you 
are commenting on and provide specific examples or information to 
support your comments where possible. Please follow the instructions on 
<a href="https://www.regulations.gov">https://www.regulations.gov</a> and the docket website for submitting 
comments, but do not submit any information electronically that you 
consider to be CBI or other information whose disclosure is restricted 
by statute as there are separate instructions below for submitting CBI. 
Once submitted, comments cannot be edited or removed from the docket. 
You do not need to address every topic and should focus on those topics 
where you have relevant expertise or experience. The EPA may publish 
any comment received to its public docket or to <a href="https://www.regulations.gov">https://www.regulations.gov</a> without change, including any personal information 
provided. Multimedia submissions (e.g., audio, video) must be 
accompanied by a written comment. The written comment is considered the 
official comment and should include discussion of all points you wish 
to make. In all cases, to the extent possible, please cite any public 
data related to or that support your responses. If data are available, 
but non-public, describe such data to the extent permissible. The EPA 
will generally not consider comments or comment contents located 
outside of the primary submission (i.e., on the web, cloud, or other 
file sharing system).

Confidential Business Information

    CBI is commercial or financial information that is both customarily 
and actually treated as private by its owner. Under the Freedom of 
Information Act (FOIA) (5 U.S.C. 552), CBI is exempt from public 
disclosure. If your comments responsive to this RFI contain commercial 
or financial information that is customarily treated as private, that 
you actually treat as private, and that is relevant or responsive to 
this RFI, it is important that you clearly designate the submitted 
comments as CBI. Pursuant to 40 CFR part 2, you may ask the EPA to give 
confidential treatment to information you give to the Agency by taking 
the following steps: (1) mark each page of the original document 
submission containing CBI as ``Confidential''; (2) send the EPA, along 
with the original document, a second copy of the original document with 
the CBI deleted; and (3) explain why the information you are submitting 
is CBI. Unless you are notified otherwise, the EPA will treat such 
marked submissions as confidential under the FOIA, and they will not be 
placed in the public docket of this RFI. Submissions containing CBI 
should be sent to the individual listed in the FOR FURTHER INFORMATION 
CONTACT section. Any comment submissions that the EPA receives that are 
not designated as CBI will be placed in the public docket for this 
matter.

II. Background

    The Infrastructure Investment and Jobs Act (IIJA) amended the 
Energy Policy Act at 42 U.S.C. 16091 to authorize the clean school bus 
(CSB) program. The IIJA directs the EPA to create the CSB Program and 
fund projects totaling $5 billion over 5 years for the replacement of 
existing school buses with clean school buses or zero-emission school 
buses, as well as fueling infrastructure. The CSB Program prioritizes 
providing school districts with resources to replace as much of their 
school bus fleet as possible through the duration of the CSB Program. 
Maximizing fleet-turnover requires a focus on affordability and 
technology choice, including setting an appropriate EPA funding level 
and ensuring school districts can choose the type of bus that best 
suits their needs. Of the amounts appropriated to the EPA for CSB 
awards in a fiscal year, the IIJA directs the EPA to use fifty percent 
to replace existing buses with clean and zero-emission buses and the 
other fifty percent to replace existing buses with zero-emission buses 
(42 U.S.C. 16091(b)(2)).
    To date, nearly $3 billion has been awarded through one competitive 
grant opportunity and two rebate opportunities. Across these three 
opportunities, the EPA expects that recipients will replace nearly 
8,500 school buses with propane-fueled, and battery-electric school 
buses. School buses that were fueled by biofuels, compress natural gas 
(CNG), liquified natural gas (LNG), and hydrogen were not awarded in 
prior funding rounds. The result of the awards was that battery-
electric accounted for over 90 percent of these new vehicles. School 
districts applied directly for funding or partnered with third parties 
such as student transportation providers, bus dealerships, and 
manufacturers.
    The EPA observed that CSB projects where all partners--including 
school boards, transportation service providers, bus manufacturers and 
dealers, utilities, and infrastructure providers--are engaged prior to 
the application were most successful. The EPA highly encourages 
applicants to consult with potential partners to discuss expectations, 
costs, and timelines in advance of the application. Further, the 
bankruptcy of Lion Electric seriously impacted several projects. 
Applicants should exercise due diligence when

[[Page 8236]]

selecting partners for their applications. School districts should also 
consider if the school district is best suited to be the direct 
applicant to ensure maximum flexibility in their vendors. 
Alternatively, some school districts may prefer a third party manages 
the application and project, and these districts may be better served 
as a beneficiary to a third-party application.
    Finally, the statute allows for-profit entities to apply directly 
for CSB funds. Based on program implementation experience to date with 
this relatively unique structure, the EPA and for-profit funding 
recipients need to improve internal controls and financial management 
systems. The EPA is developing additional requirements applicable to 
for-profit recipients in the next funding round and seeks input on how 
to draft robust program guidance and requirements to ensure responsible 
grant management.
    For more information on the CSB Program, including eligibility for 
participants as specified in the statute, please refer to <a href="https://www.epa.gov/cleanschoolbus">https://www.epa.gov/cleanschoolbus</a>.

A. Alternative Fuel School Buses

    The IIJA allows the EPA to fund the replacement of existing school 
buses with clean school buses. The IIJA defines ``clean school bus'' as 
a school bus that that the Administrator certifies reduces emissions 
and operates entirely or in part using an ``alternative fuel'' or a 
``zero-emission school bus.'' 42 U.S.C. 16091(a)(3).
    The IIJA defines ``alternative fuel'' to mean LNG, CNG, hydrogen, 
propane or biofuels. 42 U.S.C. 16091(a)(2). Prior CSB-funding rounds 
did not include biofuels, LNG, or hydrogen. In the next funding round, 
the EPA plans to expand the available types of school bus technology to 
provide school districts with all alternative fuels identified under 
the law and to allow for the maximum number of affordable bus choices 
to fit school districts' specific needs. To gain an understanding of 
the interest in and feasibility of these additional technologies, the 
EPA is seeking feedback from stakeholders on the availability of school 
bus technology and associated infrastructure needs for these fuel 
types, as well as any new information on propane or CNG school bus 
technology and associated infrastructure.

B. Alternative Fuels

    As noted above, the EPA may provide awards toward the purchase of 
school buses that the Administrator certifies reduce emissions and are 
operated entirely or in part using biofuels, CNG, LNG, propane, or 
hydrogen (i.e., alternative fuels). The EPA would like to better 
understand the expected emissions performance of school buses operating 
on the range of alternative fuels allowed by the law as the market 
availability and distribution practices for these fuels. Specifically, 
the EPA seeks information on the availability, blends, pricing, 
performance, and other considerations of the defined alternative fuels 
for use in school buses. Through responses to the questions listed 
below, the EPA would like to better understand (1) the market 
availability and transport logistics of alternative fuels for use in 
school bus applications, (2) the availability and common practices of 
fuel feedstock and blend documentation for retail purchases of 
alternative fuels in both onsite fueling systems, and through offsite 
arrangements for fueling the buses of public and private student 
transportation providers, and (3) the appropriate fuel and technology 
comparisons between clean school buses and the existing buses they will 
replace for the purpose of certifying emissions reductions, including 
how to account for emissions from bus operation using a blended 
alternative fuel or an alternative fuel only for a portion of service.

C. Fueling Infrastructure

    Through the CSB Program, the EPA may fund fueling infrastructure as 
an eligible expense in supporting school bus projects. The EPA seeks 
information on the availability, pricing, performance, and other 
considerations of alternative fueling infrastructure systems and 
components. Regarding fueling infrastructure, this RFI is intended to 
help the EPA better understand (1) the market availability of 
domestically manufactured alternative fueling infrastructure and (2) 
common fueling practices for school bus fleets for both onsite fueling 
systems and offsite arrangements.

D. School Bus Industry Supply Chain and Purchasing Practices

    The EPA recognizes that supply-chain related factors impact project 
timelines from ordering to putting new buses into service. The EPA 
seeks information to better understand these factors, particularly 
elements that extend the period between grant drawdowns and invoiced 
vehicle and equipment procurement by grantees and sub-grantees. The EPA 
is also interested in information regarding opportunities that promote 
cost effectiveness and fleet turnover, such as standardization of 
purchasing requirements across geographies or Federal cost-share 
levels, while accommodating local and State needs to reduce costs, 
expedite production, and streamline service and training.

E. Oversight and Fraud Prevention

    The EPA is committed to the responsible management of CSB funding, 
which includes providing clear information and tools for funding 
recipients to promote compliance with grant requirements and conducting 
oversight to ensure such compliance and to prevent waste, fraud, and 
abuse of taxpayer dollars. The CSB Program office has continually 
engaged with the EPA Office of Inspector General and implemented 
recommendations included in their oversight reports. The EPA has also 
implemented adjustments to each funding round as the Agency continually 
improves program management based on prior funding rounds. Input on 
effective oversight measures is always welcomed by the EPA, including 
in response to this RFI.
    The EPA conducted a comprehensive internal review of the CSB 
Program over the past year to assess financial management practices, 
compliance performance, and internal control structures. The EPA has 
significant concerns after discovering several weaknesses and 
vulnerabilities. These include inconsistent documentation and 
recordkeeping among some awardees, instances of incomplete adherence to 
reporting and award conditions, improper or premature drawdowns of 
funds, and insufficient internal by certain awardees, including some 
for-profit recipients. The EPA also identified areas where verification 
processes related to vehicle scrappage, deployment, and operational 
compliance could be strengthened.
    The EPA takes these concerns seriously. Protecting taxpayer 
resources is a core responsibility of the Agency. In light of these 
concerns, the EPA is evaluating and intends to incorporate strengthened 
oversight mechanisms into any future funding rounds to reduce risk, 
improve transparency, and ensure funds are used strictly as authorized. 
The Agency is considering pre-award risk assessments and financial 
capability reviews for certain applicants; stronger documentation 
requirements associated with drawdowns and reimbursements; clearer and 
more enforceable award terms and conditions; improved verification 
procedures for scrappage and operational compliance; and expanded post-
award monitoring, including targeted compliance reviews where 
appropriate. The Agency is also evaluating the appropriateness of

[[Page 8237]]

additional safeguards and conditions for for-profit entities.
    The EPA recognizes the importance of balancing robust oversight 
with practical implementation. The Agency seeks input on oversight 
approaches that can strengthen accountability while minimizing 
unnecessary administrative burden for school districts and fleet 
operators acting in good faith. The specific questions are listed in 
section III-E of this RFI.

III. Request for Comments and Information

    In this section, the EPA requests responses to specific topics. 
Please indicate in your written comments the topic number(s) you are 
commenting on and provide specific examples or information to 
illustrate your comments where possible.

A. Alternative Fuel School Buses

    The EPA requests information on current and expected near-term 
(i.e., within 1-5 years) availability of alternative fuel Type A school 
buses (typically Class 3-6 vehicles, gross vehicle weight rating (GVWR) 
10,001-26,000 pounds) and Types C and D school buses (typically Class 
7-8 vehicles, GVWR >26,000 pounds). The EPA also requests responses to 
the questions regarding the current state of alternative fuel school 
buses, including vehicle availability, performance, pricing, 
opportunities to streamline manufacturing processes, and other 
practical considerations.
    1. Using the following categories as a guide, please identify types 
of vehicles that you are providing information about in response to 
this RFI. For each item you identify, please provide a description and 
specify the type of fuel (i.e., biodiesel, hydrogen, propane, CNG, LNG, 
E85 flex fuel, or other biofuel technologies).
    i. Type A school buses.
    ii. Type C school buses.
    iii. Type D school buses.
    2. For each of the vehicle types you identified in response to 
Topic A.1, please:
    i. Describe the current and the expected near-term (i.e., within 1-
5 years) availability of the vehicles based on sales volumes, number 
and size of manufacturers, and other key industry factors.
    ii. Provide information on the near-term demand outlook for the 
vehicles. For entities that are eligible for funding, please describe 
how many and what types of alternative fuel vehicles you would 
anticipate purchasing in the near-term.
    iii. Provide information regarding whether the current and expected 
near-term manufacturing capacity would be adequate to meet the expected 
market demand. Please specify any factors that are helping or impeding 
the industry from meeting the expected demand, both currently and in 
the near-term.
    iv. Provide information on the current and expected near-term 
average customer delivery time.
    v. Specify the current market price (or price range) of the 
vehicles and what is included in that price.
    vi. Provide information on the price outlook through calendar year 
2026 and, where applicable, through the near-term (i.e., within 1-5 
years). Please identify and describe any opportunities for reducing 
prices.
    vii. Provide information regarding supply chain constraints, local 
permitting, safety requirements, and other factors that may affect 
costs, invoicing timeframes, or project implementation timelines.
    viii. Describe the expected service life and long-term (greater 
than 5 years) operation and maintenance requirements of alternative 
fuel school buses compared to those operating on conventional 
petroleum-based liquid fuels.
    ix. Provide information regarding the cost of maintenance and 
operation of alternative fuel school buses. Please specify information 
on related costs and identify any differences in these costs compared 
to school buses that use conventional petroleum-based fuels. If 
information specific to school buses is not available, then please 
provide information relevant to similarly sized medium- and heavy-duty 
vehicles.
    x. Describe the expected performance and maintenance impacts on the 
service life of alternative fuel vehicles in extreme weather conditions 
or seasonal operation relative to vehicles operating on conventional 
diesel or gasoline fuel. Include information on any differences in 
efficiency, reliability, and operational characteristics or challenges 
that may arise in cold or hot climates or related to fuel remaining in 
vehicle tanks for extended times such as summer or holiday breaks, and 
steps taken to address any such differences.
    xi. Provide information on school bus telematics systems, 
specifically on systems which monitor fuel use and parameters, 
including software and hardware system components, whether systems are 
proprietary or third-party platforms, data transmission frequency, 
vehicle activity data (e.g., miles traveled) and geospatial 
information, and potential applications of vehicle telematics to 
monitor fuel usage, track real-time fuel consumption, analyze fuel 
efficiency, and identify fuel blends through advanced sensors.

B. Alternative Fuels for Use in School Buses

    The EPA requests information on current and expected near-term 
(i.e., within 1-5 years) availability of specified alternative fuels 
for use in school buses. The EPA also requests responses to the 
questions regarding the current and near-term state of alternative 
fuels, including fuel availability, blends, pricing, supply 
arrangements, fueling practices, and documentation.
    1. Using the following categories as a guide, please identify types 
of fuels (i.e., biodiesel, renewable diesel, E85 flex fuel, CNG, LNG, 
propane, or other biofuel), including information on blends and fuel 
feedstocks, as well as applicable fuel supply arrangements, for the 
fuels that you are providing information about in response to this RFI.
    i. Alternative fuels for school buses with onsite fleet fueling.
    ii. Alternative fuels for school buses utilizing offsite private 
fueling stations.
    iii. Alternative fuels for school buses utilizing offsite public 
fueling stations.
    2. For each of the items you identified in response to Topic B.1, 
please:
    i. Describe the current and the expected near-term (i.e., within 1-
5 years) availability of these alternative fuels based on sales 
volumes, number and size of fuel suppliers and distributors, and other 
key industry factors. Please specify any limitations of fuel 
availability related to geographic conditions, order volume, seasons 
and weather, or other factors.
    ii. Provide information on the near-term demand outlook for these 
alternative fuels. For entities that are eligible for funding, please 
describe the volume and types of alternative fuels you anticipate 
purchasing in the near-term.
    iii. Provide information on fuel supplier arrangements, including 
the frequency of fuel deliveries, volume of delivered fuels, common 
fuel supply contract structures, and seasonal or operational variations 
in fuel supply or fuel blend rates or properties.
    iv. Where the alternative fuel may be used interchangeably with 
conventional fuel (e.g., B20 or renewable diesel), please describe what 
documentation is currently used in the marketplace that ensures the use 
and purchase of the alternative fuel and how such dual operation is 
documented (e.g., miles traveled, engine hours, or fuel usage). 
Submissions of examples of receipts (if

[[Page 8238]]

applicable, CBI should be submitted separately per instructions in the 
Confidential Business Information section) and proof of delivery 
documents are encouraged.
    v. Provide information about the appropriate baseline and current 
fuels the EPA should consider for comparing emissions reductions of 
buses using alternative fuels.
    vi. Provide information on school bus fleet fueling practices for 
each of the categories under Topic B.1, including any information 
related to the impact of vehicle size, fuel type, geography, and type 
of fleet operator (e.g., school district fleet, state government fleet, 
private school transportation provider, etc.) on fueling strategies.

C. Fueling Infrastructure for Alternative Fuels

    The EPA requests information on fueling infrastructure for vehicle 
fleets that use alternative fuels. Specifically, the EPA requests 
information on fueling system components, pricing, construction and 
installation requirements, performance, domestic content, and other 
practical considerations.
    For each of the items you identified in response to Topic B.1, 
please:
    1. Describe how separate fueling infrastructure is necessary for 
school bus fleets that adopt alternative fuels or expand the use of 
alternative fuels. For fleets that currently have alternative fuel 
buses and on-site fueling capabilities, at what fleet size might 
additional alternative fuel storage or modifications to equipment be 
necessary?
    2. Describe the components of an onsite fleet fueling system. 
Please include information on pricing and availability, as well as 
factors that impact pricing and availability (e.g., system size, 
geography, local regulations, etc.). Diagrams of fueling systems and 
components are encouraged.
    3. For each system listed in B.1, describe how an onsite fueling 
system for an alternative fuel is different than a system for 
conventional fuels.
    4. For biodiesel, please describe how both weather conditions and 
limited use of fuel during specific periods (e.g., during summer when 
school buses are not driving normal routes or winter when lower 
temperatures could affect fuel flow properties) may impact the use and 
storage of the fuel, as well as any requirements to address separation, 
filtering, or mixing.
    5. Provide information on construction and installation of fueling 
systems, including typical pricing, project timelines, and 
requirements, such as permitting requirements and timeframes between 
permit request and receipt.
    6. Describe the expected service life and long-term operation and 
maintenance requirements of these components.
    7. Describe the original manufacturer's warranty of components. 
Please include all applicable parameters, such as years or hours of 
operation. Please specify fuel types and fuel blends that are covered 
or omitted from manufacturer warranties.
    8. Provide information regarding parts or equipment availability 
constraints, local permitting, safety requirements, and other needs 
that may affect costs, delivery timeframes, or installation time of 
onsite fleet fueling systems.
    9. Provide details on fueling or engine system components that can 
track, measure, or report on fuel usage data, fuel type, and biofuel 
blend information.

D. School Bus Industry Supply Chain and Purchasing Practices

    The EPA is interested in better understanding aspects of CSB 
project implementation timeframes, particularly those aspects that 
could lengthen the time between grant funding drawdowns and invoiced 
vehicle and equipment procurement by grantees and sub-grantees. The EPA 
requests information on supply chain and purchasing practices, school 
bus production and component ordering timelines (in days), as well as 
standard purchasing practices, including down payment expectations for 
school buses eligible under the CSB Program. The EPA also requests 
comment on aspects of CSB Program design, including appropriate funding 
levels, that promote cost effectiveness and provide incentives to apply 
while preventing overpayment for specific technologies.
    1. Provide information on supply chain practices specific to the 
production timelines (in days) for zero-emission and alternative fuel 
school buses, including how far in advance school bus manufacturers pay 
for vehicle components.
    2. Describe the standard purchasing processes for school buses, 
including any down payment expectations.
    3. Provide information on supply chain practices specific to the 
production timelines (in days) for any charging or refueling 
infrastructure to support school buses, including how far in advance 
infrastructure manufacturers must pay for infrastructure components.
    4. Provide information on potential opportunities to streamline 
school bus purchasing practices to encourage lower bus prices, 
including any opportunities related to standardization of bus 
requirements across geographic areas.
    5. The EPA also requests comment on aspects of program design to 
promote cost effectiveness and fleet turnover while preventing 
overpayment for specific technologies.
    i. Please describe methods for setting government cost-share 
funding levels for school bus replacement projects that could support 
these goals.
    ii. Please describe strategies to standardize school bus 
procurement or school bus design specifications while accommodating 
local and state bus specification needs. For example, strategies for 
standardization that can reduce costs, expedite production, and 
streamline service and training.

E. Oversight and Fraud Prevention

    The EPA is committed to effective management of CSB funding, which 
includes providing clear information and tools for funding recipients 
to promote compliance with grant requirements and conducting oversight 
to ensure such compliance and to prevent waste, fraud, and abuse of 
taxpayer dollars. The EPA is also interested in improving oversight, 
specifically for third-party, for-profit applicants, and welcomes 
comment on how the Agency can strengthen oversight across the CSB 
Program to protect Federal investment and responsibly manage awards.
    1. Please describe business models, financing structures, or third-
party arrangements, including but not limited to for-profit entities 
that may increase risk to project success and negative impacts on 
partners (e.g., school districts) and the EPA.
    2. Please describe what financial framework elements could be 
examined by the EPA for determining eligibility and risk of for-profit 
applicants, such as a review of financial statements to ensure sound 
financial conditions.
    3. Please describe objective risk assessment criteria that the EPA 
could apply during pre-award review to evaluate financial stability, 
operational capacity, prior Federal grant performance, and compliance 
history.
    4. Please describe financial control standards, audit readiness 
procedures, and conflict of interest policies for-profit entities 
should have in place prior to receiving a Federal award to ensure that 
funds are only used for their intended purpose (i.e., grant award).
    5. Please describe limitations for-profit entities should be 
subject to in order to avoid conflicts of interest, self-dealing, and 
other practices that are

[[Page 8239]]

prohibited by Federal grant regulations at 2 CFR 200.
    6. Please describe verification tools or documentation applicants 
could provide to verify appropriate bus usage and potential routes 
before funds are disbursed. Please submit sample documentation if 
available.
    7. Please describe whether and how milestone-based payment 
structures, reimbursement-only models, or phased disbursement 
mechanisms tied to verified delivery could reduce risk and improve 
accountability.
    8. Please describe appropriate enforcement mechanisms, including 
repayment obligations or clawback provisions, that the EPA should 
consider in cases of nonperformance, noncompliance, or misuse of funds.

Aaron Szabo,
Assistant Administrator, Office of Air and Radiation.
[FR Doc. 2026-03351 Filed 2-19-26; 8:45 am]
BILLING CODE 6560-50-P


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Indexed from Federal Register on February 20, 2026.

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