Proposed Rule2026-06865

Spectrum Abundance for Weird Space Stuff

Primary source

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Published
April 9, 2026

Issuing agencies

Federal Communications Commission

Abstract

In this document, the Federal Communications Commission (Commission or we) looks to bring spectrum abundance for emergent space activities. "Emergent" or "emergent space operations" are those spacecraft or commercial operations in space that use radio spectrum for control of, or communications with, a spacecraft, but which are not communications satellites. Currently there is an acute shortage of usable and readily accessible spectrum for telemetry, tracking and command (TT&C) functions that are essential for operating emergent spacecraft. Accordingly, this document seeks to clarify and expand the Commission's traditional regulatory classifications so that emergent space operations have more predictable access to spectrum. Additionally, this document proposes to add a secondary allocation for the Space Operation Service (SOS) in spectrum bands that could support emergent space activities, particularly in frequency bands allocated for non-Federal use that may be lightly used in certain geographic areas. This document also proposes to allow existing licensees to lease their spectrum to earth station licensees to provide SOS in connection with emergent spacecraft.

Full Text

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<title>Federal Register, Volume 91 Issue 68 (Thursday, April 9, 2026)</title>
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[Federal Register Volume 91, Number 68 (Thursday, April 9, 2026)]
[Proposed Rules]
[Pages 17914-17931]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2026-06865]


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FEDERAL COMMUNICATIONS COMMISSION

47 CFR Parts 2 and 25

[SB Docket No. 26-54; FCC 26-13; FR ID 338749]


Spectrum Abundance for Weird Space Stuff

AGENCY: Federal Communications Commission.

ACTION: Proposed rule.

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SUMMARY: In this document, the Federal Communications Commission 
(Commission or we) looks to bring spectrum abundance for emergent space 
activities. ``Emergent'' or ``emergent space operations'' are those 
spacecraft or commercial operations in space that use radio spectrum 
for control of, or communications with, a spacecraft, but which are not 
communications satellites. Currently there is an acute shortage of 
usable and readily accessible spectrum for telemetry, tracking and 
command (TT&C) functions that are essential for operating emergent 
spacecraft. Accordingly, this document seeks to clarify and expand the 
Commission's traditional regulatory classifications so that emergent 
space operations have more predictable access to spectrum. 
Additionally, this document proposes to add a secondary allocation for 
the Space Operation Service (SOS) in spectrum bands that could support 
emergent space activities, particularly in frequency bands allocated 
for non-Federal use that may be lightly used in certain geographic 
areas. This document also proposes to allow existing licensees to lease 
their spectrum to earth station licensees to provide SOS in connection 
with emergent spacecraft.

DATES: Comments are due on or before May 11, 2026. Reply Comments are 
due on or before June 8, 2026.

ADDRESSES: Interested parties may file comments and reply comments on 
or before the dates indicated in the DATES section above. Comments may 
be filed using the Commission's Electronic Comment Filing System 
(ECFS). You may submit comments, identified by SB Docket No. 26-54, by 
any of the following methods:
    <bullet> Electronic Filers. Comments may be filed electronically 
using the internet by accessing the ECFS: <a href="https://www.fcc.gov/ecfs">https://www.fcc.gov/ecfs</a>.
    <bullet> Paper Filers. Parties who file by paper must include an 
original and one copy of each filing.
    <bullet> Filings can be sent by hand or messenger delivery, by 
commercial courier, or by the U.S. Postal Service. All filings must be 
addressed to the Commission's Secretary, Office of the Secretary, 
Federal Communications Commission.
    <bullet> Hand-delivered or messenger-delivered paper filings for 
the Commission's Secretary are accepted between 8:00 a.m. and 4:00 p.m. 
by the FCC's mailing contractor at 9050 Junction Drive, Annapolis 
Junction, MD 20701. All hand deliveries must be held together with 
rubber bands or fasteners. Any envelopes and boxes must be disposed of 
before entering the building.
    <bullet> Commercial courier deliveries (any deliveries not by the 
U.S. Postal Service) must be sent to 9050 Junction Drive, Annapolis 
Junction, MD 20701.
    <bullet> Filings sent by U.S. Postal Service First-Class Mail, 
Priority Mail, and

[[Page 17915]]

Priority Mail Express, must be sent to 45 L Street NE, Washington, DC 
20554.
    <bullet> People with Disabilities. To request materials in 
accessible formats for people with disabilities (Braille, large print, 
electronic files, audio format), send an email to <a href="/cdn-cgi/l/email-protection#0f696c6c3a3f3b4f696c6c21686079"><span class="__cf_email__" data-cfemail="a2c4c1c1979296e2c4c1c18cc5cdd4">[email&#160;protected]</span></a> or 
call the Consumer & Governmental Affairs Bureau at 202-418-0530.

FOR FURTHER INFORMATION CONTACT: Stephen Duall, 202-418-1103, 
<a href="/cdn-cgi/l/email-protection#87f4f3e2f7efe2e9a9e3f2e6ebebc7e1e4e4a9e0e8f1"><span class="__cf_email__" data-cfemail="e7949382978f8289c98392868b8ba7818484c9808891">[email&#160;protected]</span></a> or Brandon Padgett, 202-418-1377, 
<a href="/cdn-cgi/l/email-protection#cdafbfaca3a9a2a3e3bdaca9aaa8b9b98dabaeaee3aaa2bb"><span class="__cf_email__" data-cfemail="cfadbdaea1aba0a1e1bfaeaba8aabbbb8fa9acace1a8a0b9">[email&#160;protected]</span></a>.

SUPPLEMENTARY INFORMATION: This is a summary of the Commission's Notice 
of Proposed Rulemaking (NPRM), in SB Docket No. 26-54; FCC 26-13, 
adopted on March 26, 2026, and released on March 27, 2026. The full 
text of this document is available for public inspection online at 
<a href="https://docs.fcc.gov/public/attachments/FCC-26-13A1.pdf">https://docs.fcc.gov/public/attachments/FCC-26-13A1.pdf</a>. The full text 
of this document is also available for inspection and copying during 
business hours in the FCC Reference Center, 45 L Street NE, Washington, 
DC 20554. To request materials in accessible formats for people with 
disabilities, send an email to <a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="c5838686f0f5f185a3a6a6eba2aab3">[email&#160;protected]</a> or call the Consumer & 
Governmental Affairs Bureau at 202-418-0530 (voice), 202-418-0432 
(TTY).
    Ex Parte Presentations. This proceeding shall be treated as a 
``permit-but-disclose'' proceeding in accordance with the Commission's 
ex parte rules. Persons making ex parte presentations must file a copy 
of any written presentation or a memorandum summarizing any oral 
presentation within two business days after the presentation (unless a 
different deadline applicable to the Sunshine period applies). Persons 
making oral ex parte presentations are reminded that memoranda 
summarizing the presentation must (1) list all persons attending or 
otherwise participating in the meeting at which the ex parte 
presentation was made, and (2) summarize all data presented and 
arguments made during the presentation. If the presentation consisted 
in whole or in part of the presentation of data or arguments already 
reflected in the presenter's written comments, memoranda or other 
filings in the proceeding, the presenter may provide citations to such 
data or arguments in his or her prior comments, memoranda, or other 
filings (specifying the relevant page and/or paragraph numbers where 
such data or arguments can be found) in lieu of summarizing them in the 
memorandum. Documents shown or given to Commission staff during ex 
parte meetings are deemed to be written ex parte presentations and must 
be filed consistent with Sec.  1.1206(b). Participants in this 
proceeding should familiarize themselves with the Commission's ex parte 
rules.
    Regulatory Flexibility Analysis. The Regulatory Flexibility Act of 
1980, as amended (RFA), requires that an agency prepare a regulatory 
flexibility analysis for notice and comment rulemakings, unless the 
agency certifies that ``the rule will not, if promulgated, have a 
significant economic impact on a substantial number of small 
entities.'' Accordingly, the Commission has prepared an Initial 
Regulatory Flexibility Analysis (IRFA) concerning the possible impact 
of the rule and policy changes contained in the NPRM on small entities. 
The IRFA is set forth in Appendix A of the Commission document, <a href="https://docs.fcc.gov/public/attachments/FCC-26-13A1.pdf">https://docs.fcc.gov/public/attachments/FCC-26-13A1.pdf</a>. The Commission 
invites the general public, in particular small businesses, to comment 
on the IRFA. Comments must be filed by the deadlines for comments 
indicated on the first page of this document and must have a separate 
and distinct heading designating them as responses to the IRFA.
    Paperwork Reduction Act. The NPRM may contain new or proposed 
modified information collections. The Commission, as part of its 
continuing effort to reduce paperwork burdens, invites the general 
public and the Office of Management and Budget (OMB) to comment on any 
information collections contained in this document, as required by the 
Paperwork Reduction Act of 1995, 44 U.S.C. 3501-3521. In addition, 
pursuant to the Small Business Paperwork Relief Act of 2002, 44 U.S.C. 
3506(c)(4), we seek specific comment on how we might further reduce the 
information collection burden for small business concerns with fewer 
than 25 employees.
    OPEN Government Data Act. The OPEN Government Data Act requires 
agencies to make ``public data assets'' available under an open license 
and as ``open Government data assets,'' i.e., in machine readable, open 
format, unencumbered by use restrictions other than intellectual 
property rights, and based on an open standard that is maintained by a 
standards organization. This requirement is to be implemented ``in 
accordance with guidance by the Director'' of the OMB. The term 
``public data asset'' means ``a data asset, or part thereof, maintained 
by the federal government that has been, or may be, released to the 
public, including any data asset, or part thereof, subject to 
disclosure under the Freedom of Information Act (FOIA).'' A ``data 
asset'' is ``a collection of data elements or data sets that may be 
grouped together,'' and ``data'' is ``recorded information, regardless 
of form or the media on which the data is recorded.''
    Providing Accountability Through Transparency Act. Consistent with 
the Providing Accountability Through Transparency Act, Public Law 118-
9, a summary of the NPRM will be available on <a href="https://www.fcc.gov/proposed-rulemakings">https://www.fcc.gov/proposed-rulemakings</a>.

Synopsis

Introduction

    1. In the geopolitical race to commercialize and dominate the Final 
Frontier, historic levels of private investment have paved the way for 
the engineering marvels and daring endeavors that now take place in 
outer space. Once the province of science fiction, American companies 
are now upgrading, relocating, and servicing satellites; manufacturing 
pharmaceuticals in space; building private inhabitable spacecraft; and 
conducting private robotic missions to the surface of the Moon. 
Emergent space operations like these depend on the use of 
radiocommunications for their spacecraft, but they are not the type of 
communications satellites that have traditionally commanded much of the 
Commission's regulatory attention.
    2. Spectrum is a critical component of all space operations. Even 
for spacecraft that do not provide radiocommunications services to the 
public, reliable spectrum access is mandatory for safety functions like 
telemetry, tracking, and command (TT&C) to control spacecraft in orbit. 
American innovators, however, currently face an acute shortage of 
usable and readily accessible spectrum for TT&C, and that spectrum 
crunch threatens to delay--or even prevent--the growth of domestic 
space technologies and jeopardize U.S. leadership in the booming global 
space economy.
    3. This shortage of spectrum is the product of several interlocking 
factors. For one, spectrum for TT&C is largely unavailable on a 
standalone basis, absent a separately authorized radiocommunications 
service. Emergent space innovations like inhabitable spacecraft and 
orbital laboratories, however, do not typically provide a separately 
authorized radiocommunications service. For another, the spectrum bands 
where TT&C may be available on a standalone basis tend to be congested 
and occupied

[[Page 17916]]

primarily by Federal users. And for another, even when the Commission 
does authorize a company's use of spectrum for standalone TT&C, it 
occurs under a case-by-case review process that may involve extensive 
coordination and delay.
    4. The Commission is aggressively pursuing a policy of spectrum 
abundance in outer space. Earlier this year, we launched a proceeding 
to release up to 20,000 megahertz of spectrum for traditional 
connectivity services, including high-speed broadband from 
constellations in low-Earth orbit. The Commission has also begun a 
comprehensive revisiting its licensing and regulatory framework for 
space communications in the Space Modernization NPRM.
    5. Now, with this Notice of Proposed Rulemaking (NPRM), we focus on 
bringing spectrum abundance to support cutting-edge, emergent ventures 
in space. The NPRM pursues two paths towards abundance. First, we seek 
to clarify and expand our traditional regulatory classifications so 
that emergent operations have more predictable spectrum access. Second, 
we explore new spectrum bands that could support new use cases on a 
dedicated basis. In each path, our goal remains the same: provide a 
clear, reliable, and expeditious path to support the groundbreaking 
technologies and services that companies are developing in space. With 
the proposals in the NPRM, we look to find ways to use market-based 
principles to see spectrum resources put to more intensive use in the 
service of the space economy. By thinking creatively and expansively, 
we have the opportunity to go from zero non-Federal spectrum available 
today to support emergent space operations to at least 25 megahertz of 
such spectrum, and potentially much, much more, if all the proposals in 
the NPRM are ultimately adopted.

Background

A. Important Terminology and Definitions

    6. To facilitate a precise discussion why emergent space operations 
may not have sufficient spectrum availability, we first clarify key 
terms and definitions currently used in our rules governing space 
communications.
    7. Under the Communications Act of 1934, as amended (Act), ``[n]o 
person shall use or operate any apparatus for the transmission of 
energy or communications or signals by radio'' from or within the areas 
specified in section 301 or on a mobile station within the jurisdiction 
of the United States without a license issued by the Commission. 
Although the Act does not define the term ``signals,'' it defines 
``communication by radio'' as ``the transmission by radio of writing, 
signs, signals, pictures, and sounds of all kinds, including all 
instrumentalities, facilities, apparatus, and services (among other 
things, the receipt, forwarding, and delivery of communications) 
incidental to such transmission.''
    8. Consistent with the Act, our rules state that ``[n]o person 
shall use or operate apparatus for the transmission of energy or 
communications or signals by space or earth stations except under, and 
in accordance with, an appropriate authorization granted by the Federal 
Communications Commission.'' Under our rules, a ``space station'' is a 
``station located on an object which is beyond, is intended to go 
beyond, or has been beyond, the major portion of the Earth's 
atmosphere.'' An ``earth station'' is a ``station located either on the 
Earth's surface or within the major portion of Earth's atmosphere and 
intended for communication: (1) With one or more space stations; or (2) 
With one or more stations of the same kind by means of one or more 
reflecting satellites or other objects in space.'' Our rules define 
``radiocommunication'' as ``telecommunication by means of radio waves'' 
and ``telecommunication'' as ``any transmission, emission or reception 
of signs, signals, writings, images and sounds or intelligence of any 
nature by wire, radio, optical or other electromagnetic systems.'' 
Section 301 of the Act states that ``[n]o person shall use or operate 
any apparatus for the transmission of energy or communications or 
signals by radio . . . except under and in accordance with this Act and 
with a license in that behalf granted under the provisions of this 
Act.'' Accordingly, the transmission or reception of intelligence of 
any nature to or from a station beyond the majority of the Earth's 
atmosphere via radio waves is a space radiocommunication and, pursuant 
to our rules, requires an authorization by the Commission.
    9. Radiocommunications are classified and regulated as distinct 
kinds of ``radiocommunication service,'' defined as ``a service . . . 
involving the transmission, emission and/or reception of radio waves 
for specific telecommunication purposes.'' Those specific purposes are 
reflected in the radiocommunication services defined by our rules, such 
as the fixed-satellite service (FSS), mobile-satellite service (MSS), 
or broadcasting-satellite service (BSS). Whereas FSS, MSS, and BSS 
licensees use radio waves to provide voice, video, or data to consumers 
and businesses, other radiocommunication services do not. For example, 
the Earth exploration-satellite service (EESS) uses radio waves to 
obtain information about the Earth through active or passive sensors, 
as well as to collect and distribute that information.
    10. Some radiocommunication services, in particular, are critical 
for the operation of a spacecraft, but do not provide a service to the 
public. For example, the space operation service (SOS) is defined as 
``[a] radiocommunication service concerned exclusively with the 
operation of spacecraft, in particular space tracking, space telemetry, 
and space telecommand'' and uses radio waves for the operation of 
spacecraft. Similarly, the space research service (SRS) is defined as 
``[a] radiocommunication service in which spacecraft or other objects 
in space are used for scientific or technological research purposes.'' 
In both instances, the radiocommunication services are used to control 
and operate spacecraft, but are not themselves the services offered to 
the public. Space telemetry is defined as ``[t]he use of telemetry for 
transmission for a space station of results of measurements made in a 
spacecraft, including those relating to the functioning of the 
spacecraft.'' Space tracking is defined as the ``[d]etermination of the 
orbit, velocity or instantaneous position of an object in space by 
means of radiodetermination, excluding primary radar, for the purpose 
of following the movement of the object.'' Space telecommand is defined 
as ``[t]he use of radiocommunication for the transmission of signals to 
a space station to initiate, modify or terminate functions of equipment 
on a space object, including the space station.''
    11. Thus, there are numerous space radiocommunication services 
provided for under our rules, some of which use radiocommunications to 
provide service directly to the public, and some of which are used to 
support operations of spacecraft. All of these services involve 
transmissions of signals and thus require authorization from the 
Commission under the Act, provided that the station at issue does not 
belong to and is not controlled by the United States government.
    12. Another important point of terminology is the distinction 
between Federal and non-Federal operations and the effects of this 
distinction on allocations of radio spectrum. The Commission authorizes 
non-Federal operations, which include those by private commercial 
entities. Operations

[[Page 17917]]

conducted by agencies or entities of the U.S. federal government are 
Federal, and Congress has assigned the National Telecommunications and 
Information Administration (NTIA), which is part of the U.S. Department 
of Commerce, oversight of such operations. Together, the FCC and NTIA 
jointly manage the nation's radio spectrum resources in the public 
interest. The United States Table of Frequency Allocations (United 
States Table) contains allocations for both Federal (that is, U.S. 
federal government) and non-Federal (for example, private entities) use 
of radiocommunication services and is codified in Sec.  2.106 of our 
rules. An ``allocation'' is an entry in the Table of Frequency 
Allocations (Allocation Table) of a given frequency band for the 
purpose of its use by one or more terrestrial or space 
radiocommunication services (or the radio astronomy service) under 
specified conditions. Any segment of the radio spectrum may be 
allocated to the federal and/or non-federal sectors either on an 
exclusive or shared basis for use by one or more radio services. 
Services may be allocated on a primary or secondary basis, and 
operations on a secondary basis must not cause harmful interference to 
operations on a primary basis and cannot claim protection from harmful 
interference from operations of a primary service.
    13. Non-federal operators may be authorized to use Federal 
frequency allocations, subject to coordination with the appropriate 
federal agency or agencies and conditions agreed upon by the Commission 
and NTIA, provided that such operations shall not cause harmful 
interference to Federal stations and that operations shall terminate 
should harmful interference occur. Thus, applications to operate non-
Federal radiocommunication services in frequency bands that are 
allocated to Federal operations must first be coordinated with federal 
agencies and must not cause harmful interference to Federal operations.
    14. Lastly, there are important differences in the terms 
``spacecraft,'' ``satellite,'' and ``space station'' under our rules. A 
``spacecraft'' is defined as a ``man-made vehicle which is intended to 
go beyond the major portion of the Earth's atmosphere.'' Although 
``satellite'' is defined as a spacecraft in orbit, it is often used 
informally to refer to the physical apparatus in space. A ``space 
station'' is essentially a station on a spacecraft, and a ``station'' 
is the transmitters or receivers (or combination thereof) on the 
spacecraft necessary for carrying on a radiocommunication service. 
Furthermore, a station is classified by the service in which it 
operates, so a space station operating in the fixed-satellite service 
is classified as an ``FSS space station.'' Thus, a spacecraft can be a 
satellite, and a satellite is a spacecraft, and there can be one or 
more space stations on a satellite or spacecraft. But under our rules, 
it is the transmitters and receivers that make up a space station that 
must be authorized by the Commission.

B. The Spectrum Crunch for Emergent Space Operations

    15. The Commission has observed a significant expansion in the 
commercial space industry in recent years, as well as the need for 
additional spectrum resources to conduct operations in space. Although 
the Commission has initiated proceedings to make spectrum abundant for 
satellites that provide radiocommunications services to the public, 
such as FSS, longstanding regulatory gaps currently constrain the 
availability of spectrum for new use cases. This ``spectrum crunch'' 
arises from several interlocking factors, discussed below.
    16. Spectrum used for emergent space operations may not clearly 
fall within an existing radiocommunication service. The Commission has 
received a growing number of applications to transmit or receive 
radiocommunications that do not involve the provision of 
radiocommunication services to the public. In each of these instances, 
the spacecraft is intended to provide services or engage in activities 
that are not radiocommunication services, such as in-space servicing, 
assembly, and manufacturing (ISAM), commercial habitable space 
stations, and lunar orbiters and landers. The spectrum needs of such 
applications are usually limited to radiocommunication services to 
conduct TT&C functions necessary to command and control the spacecraft.
    17. Under our current rules and the International Telecommunication 
Union (ITU) Radio Regulations, spacecraft conduct TT&C functions within 
the same frequency bands in which they are authorized to provide other 
radiocommunication services, such as FSS, MSS, BSS, or EESS. For this 
reason, licensees are generally authorized by the Commission to conduct 
TT&C functions within frequency bands authorized for another allocated 
radiocommunications service. Because spacecraft used for emergent 
purposes such as lunar missions generally do not otherwise provide 
radiocommunication services, applicants seeking an FCC license to use 
spectrum to conduct TT&C to control these spacecraft cannot clearly 
rely on the use of existing spectrum resources allocated for FSS, MSS, 
or EESS to command and control their spacecraft.
    18. Spectrum available for emergent space operations may be 
prioritized for Federal operations and can be difficult to access. In 
the past, activities in space were often conducted by governments, 
rather than private entities. In the United States, space activities 
that did not provide radiocommunication services to the public were 
typically conducted through government agencies, such as the National 
Aeronautical and Space Administration (NASA) or the Department of War 
(DoW). As observed in our discussion of terminology and definitions 
above, the Commission did not license these operations because these 
operations were controlled by federal agencies. Accordingly, these 
operations relied largely on spectrum allocated for Federal users in 
the United States Table.
    19. Today, as the American commercial space industry expands, there 
is an increasing reliance on private entities to conduct activities in 
space that in the past may have been conducted through government 
agencies. These activities are increasingly conducted either 
independently of government agencies, or under contractual arrangements 
with, or with funding from, government agencies. Because these 
activities are ultimately controlled by private entities, rather than 
government agencies, applicants are seeking licenses from the 
Commission for their use of radiofrequencies, particularly for 
radiocommunications to command and control their spacecraft. In doing 
so, the operations are categorized as non-Federal operations.
    20. Because of the past reliance on the use of other allocated 
radiocommunication services, such as FSS, for the conduct of TT&C 
functions for private entities, there are few explicit separate 
allocations for conducting command and control of spacecraft by non-
Federal operators in the United States Table. The Commission's rules 
and the ITU Radio Regulations provide SOS and SRS allocations that 
support command and control of spacecraft. Current spectrum allocations 
for these services, however, are primarily for Federal use in the 
United States Table and are heavily used by Federal operations, 
including portions of the S-band allocated for Federal SOS operations 
in the 2025-2110 MHz (Earth-to-space), 2200-2290 MHz (space-to-Earth) 
bands, and portions of the X-band allocated for Federal SRS in the 
8400-8450 MHz

[[Page 17918]]

(space-to-Earth) and 8450-8500 MHz (space-to-Earth) bands.
    21. Many of the applications for Commission authority to operate 
radiocommunications to support ISAM and lunar operations have requested 
to operate in the same S-band and X-band allocations for SOS and SRS 
that are primarily and heavily used by Federal operators, as these 
bands support readily available, ``off-the-shelf'' antenna systems that 
are significantly more cost effective than designing and building 
customized antenna systems in-house. Access to these allocations by 
non-Federal operators, however, is subject to coordination and sharing 
requirements with Federal users, which can often take substantial time 
and effort to complete. In addition, the absence of a clearly defined 
regulatory path for access to SOS and SRS allocations used by Federal 
operations on a primary basis has led to a case-by-case licensing 
approach and to regulatory uncertainty.
    22. Non-Federal spectrum bands that could support emergent 
operations are also congested. To address and facilitate the 
development of ISAM, the Commission previously sought comment in a 
notice of inquiry (ISAM NOI) and a notice of proposed rulemaking (ISAM 
NPRM) on the needs of ISAM operators and proposed a potential 
streamlined regulatory framework for supporting such missions. The 
Commission has previously acknowledged the increasing variety of space 
missions and the need to modernize spectrum policies to accommodate 
these operations. Furthermore, in the ISAM NPRM, the Commission 
tentatively concluded that various communication activities in support 
of ISAM could potentially operate within several existing service 
allocations and proposed to continue to review ISAM operators' requests 
for frequency use on a case-by-case basis. Although comments in 
response to the ISAM NPRM support this tentative conclusion, they also 
indicate that existing service allocations may not be sufficient for 
ISAM, and that additional spectrum resources are needed, particularly 
in frequency bands that are allocated for use by non-Federal operations 
and that do not require extensive coordination with other spectrum 
users.
    23. Commenters have identified multiple frequency bands that might 
be used to conduct TT&C functions for spacecraft that do not also 
operate in other radiocommunication services, such as FSS or EESS. 
Almost all of the identified frequency bands, however, are currently 
used by a diverse range of existing non-Federal spectrum users, or are 
shared with or primarily used by Federal operations, which would still 
require extensive coordination with multiple spectrum users and would 
not provide a clear and reliable path for licensing by the Commission. 
We therefore focus the NPRM on proposals and alternatives that could 
provide a clear and reliable path in the near future for accessing 
additional spectrum resources for conducting TT&C operations for 
spacecraft that are unable to conduct such operations under allocations 
for other radiocommunication services.

Discussion

    24. We seek comment on steps that the Commission can take to make 
spectrum abundant for emergent space operations. These steps include 
providing regulatory clarity and leveraging existing spectrum 
allocations to support such operations. They also include unlocking new 
sources of usable spectrum by allowing existing Commission spectrum 
licensees to make their spectrum resources available in ways that are 
not currently permitted under our rules. Although we recognize that 
these are initial steps towards making spectrum abundant to support 
innovative new endeavors in space, we seek comment on the extent to 
which they may alleviate spectrum shortcomings, expedite the 
Commission's licensing, and facilitate innovation.
    25. We seek comment on a variety of proposals and ideas in the 
NPRM. Building upon the record in the ISAM proceeding, we propose to 
codify the potential use of frequency piggybacking. Another proposal 
herein is to review requests to operate space stations within specific 
service allocations on a case-by-case basis. Next, we seek comment on 
conducting TT&C to support emergent operations in FSS bands on an 
unprotected, non-interference basis subject to coordination with other 
spectrum users, as well as what operations fall within our definition 
of TT&C. We also seek comment on the types of applications that may 
seek to operate within the SRS allocation. We also propose to add a 
secondary allocation for SOS in the 2320-2345 MHz band for command 
uplink and permit a version of de facto spectrum leasing of that band 
to earth station licensees. We seek comment on alternatives to these 
proposals and whether to extend this proposed leasing framework to 
other frequency bands. Lastly, we seek comment on whether licensed 
satellite operators should be authorized by rule to use their FCC-
licensed satellites and intersatellite links to provide TT&C and data 
downlinks to support emergent operations. We also seek comment on any 
alternatives that would be less burdensome for small entities.
    26. As observed above, the Commission has previously sought comment 
on radiofrequency use for non-communications satellites in the ISAM NOI 
and NPRM. In this proceeding, we seek comment on proposals to make 
available additional spectrum resources not only in support of ISAM 
missions, but also for all emergent space operations. Because we are 
not proposing here to create spectrum allocations specifically and 
solely for use by ISAM or for lunar missions, we seek comment on 
proposals to allow increased and more efficient use of spectrum to 
support all space operations that do not otherwise provide 
radiocommunication services to the public. Accordingly, we make 
alternative proposals regarding spectrum availability for ISAM and 
propose to no longer address spectrum use issues in the ISAM 
proceeding. Rather, we seek comment on whether to address the issues of 
spectrum availability to support ISAM missions through the proposals of 
this proceeding, rather than as part of the ISAM NPRM. We are not 
seeking comment in this proceeding on potential changes to how we 
process applications for authority to provide radiocommunication 
services or on other potential changes to our rules specific to the 
needs of ISAM operations. Although the ISAM NPRM sought comment on 
possible modifications to our rules in order to facilitate the 
licensing and regulation of radiocommunications in support of ISAM 
missions, our focus today is on proposals and alternatives related to 
spectrum availability for all emergent space operations.

A. Establishing Regulatory Clarity for the Use of Existing Spectrum 
Allocations

    27. There is currently no radiocommunication service specifically 
dedicated for use by emergent space operations domestically or 
internationally. Accordingly, there is the need for clarity and 
certainty in the ability of operators to access other 
radiocommunication service allocations necessary to conduct their 
emergent operations in space. To that end, in addition to the proposals 
in the NPRM for specific frequency bands that might be utilized more 
intensively to support TT&C functions for emergent space operations, we 
propose to codify several

[[Page 17919]]

Commission policies to provide additional regulatory clarity for these 
operators using existing radiocommunication service allocations.
1. Authorizing by Rule Spectrum ``Piggybacking'' for Emergent Space 
Operations
    28. In the ISAM NPRM, the Commission recognized commenters' 
interest in allowing ISAM spacecraft to communicate in frequency bands 
already authorized for use by another spacecraft while the two 
spacecraft are connected or working together in close proximity to each 
other, also known as frequency ``piggybacking.'' Additionally the ISAM 
NPRM noted that the piggybacking option has been authorized under 
existing part 25 rules in the past. There is unanimous support in 
response to the ISAM NPRM for allowing frequency piggybacking for 
radiocommunications in support of ISAM operations, and frequency 
piggybacking has previously been authorized as an option for ISAM 
operators on a case-by-case basis.
    29. Accordingly, we propose to codify the potential use of 
frequency piggybacking in our rules in order to provide regulatory 
clarity. We seek comment on how to codify the potential use of 
frequency piggybacking that provides regulatory clarity and certainty, 
but also recognizes that piggybacking may not be suitable for all types 
of operations. Furthermore, we seek comment on how such codification 
could be worded to address a wide-range of potential scenarios for 
frequency piggybacking, in order to provide both certainty and 
flexibility. As an example, comments have asked the Commission to 
clarify whether frequency piggybacking may be permissible for an 
operator whose client is an EESS operator. We tentatively conclude that 
this would be an acceptable scenario for frequency piggybacking. We 
seek comment on this tentative conclusion.
    30. We propose to codify that the Commission may authorize a space 
station to use the same frequencies as a separate, consenting 
spacecraft (that is, a ``client'' spacecraft) that is also authorized 
by the Commission or has obtained a grant of U.S. market access, 
provided that the applicant for the space station authorization 
certifies that the space station will be used for servicing, 
monitoring, or collaborating with the client spacecraft and that the 
operations will conform with the client spacecraft's ITU filings and 
licensed frequency parameters. We seek comment on this proposal. 
Specifically, we seek comment on how to define a client spacecraft and 
whether there are other instances in which we should allow piggybacking 
in addition to servicing, monitoring, or collaborating with a client 
spacecraft. Additionally, should licensees or grantees of U.S. market 
access engaged in spectrum piggybacking be required to provide the 
specific frequency information required by our rules to allow Space 
Bureau staff to confirm the operations are in conformance with the 
client's license or market access grant and ITU filings? Or would 
certification be sufficient? Similarly, should licensees or grantees be 
required to provide evidence of the other space station operator's 
consent to piggybacking operations, or is certification again 
sufficient? Is there anything else we should consider requiring from 
operators proposing to conduct piggybacking operations? We recognize 
there may also be additional considerations for operators seeking FCC 
authorization to conduct spectrum piggybacking with a non-U.S. licensed 
client that has not sought U.S. market access, and we seek comment on 
what certifications or demonstrations we should require in such 
instances in order to fulfill our international obligations, protect 
national security, and promote American innovation in space.
2. Authorizing Standalone TT&C Within Existing FSS Allocations
    31. We also seek comment on permitting licensees and market access 
grantees for emergent space operations to conduct TT&C in FSS bands 
where TT&C may already be provided within the radiocommunication 
service. As observed above, the Space Bureau routinely authorizes FSS 
space station licensees to conduct TT&C in the same frequency bands 
that are allocated for FSS. Thus, we are confident that it is 
technically feasible to conduct TT&C in frequency bands that are 
already allocated for FSS by non-Federal operators, and that there is 
likely to be readily-available earth station facilities and equipment 
to support TT&C in these frequency bands. TT&C operations licensed 
outside of our processing procedures for GSO or NGSO FSS are unable to 
claim protection from interference from, and are not permitted to cause 
harmful interference to, other licensed operators that are authorized 
within our processing procedures. Accordingly, we envision permission 
for such TT&C operations licensed outside of processing procedures 
would be on an unprotected, non-interference basis, subject to 
coordination with other authorized spectrum users. We seek comment on 
the appropriate status of such TT&C operations and whether such TT&C 
operations can, in fact, be successfully coordinated with other 
authorized spectrum users to avoid harmful interference. We also seek 
comment on whether TT&C for emergent space operations could be provided 
in frequency bands allocated for radiocommunication services such as 
MSS or BSS, which often require use of frequency division or planned 
bands in order to avoid interference among spectrum users. Would such 
frequency bands also be able to accommodate TT&C for emergent space 
operations on an unprotected, non-interference basis?
    32. In addition, we seek comment on whether applicants could be 
granted authority to provide TT&C as a form of FSS in bands allocated 
for non-Federal FSS. We observe that FSS is defined as a 
``radiocommunication service between earth stations at given positions, 
when one or more satellites are used; the given position may be a 
specified fixed point or any fixed point within specified areas; in 
some cases this service includes satellite-to-satellite links, which 
may also be operated in the inter-satellite service; the FSS may also 
include feeder links of other space radiocommunication services.'' Is 
the ability to provide TT&C within the definition of FSS analogous to 
the ability to provide feeder links in such an allocation (that is, one 
way uplinks that are not between earth stations)? We expect, however, 
that TT&C provided as FSS would be limited to the provision of TT&C on 
an unprotected, non-interference basis, subject to coordination with 
other spectrum users, outside of a first-come, first service procedure 
or a processing round. We seek comment on this expectation.
    33. We also seek comment to what extent operations on an 
unprotected, non-interference basis are suitable for TT&C functions, 
which may be critical to the command and control of a spacecraft. What 
level of availability and reliability is needed for command and 
control? Would it be in the public interest to facilitate TT&C 
operations without providing absolute certainty of non-interference? As 
an example, would TT&C on an unprotected, non-interference basis be 
sufficient for certain operators, such as those conducting rendezvous 
and proximity operations (RPO) and docking, or those operating 
inhabitable spacecraft?
3. Refining the Definition of TT&C
    34. Section 2.1 of our rules defines space telecommand as ``[t]he 
use of radiocommunication for the transmission of signals to a space 
station to initiate, modify or terminate

[[Page 17920]]

functions of equipment on a space object, including the space 
station.'' And space telemetry is defined as ``[t]he use of telemetry 
for transmission for a space station of results of measurements made in 
a spacecraft, including those relating to the functioning of the 
spacecraft.'' The Commission has previously recognized that service 
allocations for TT&C, may not be sufficient for certain operators, such 
as those conducting RPO and docking, or those operating inhabitable 
spacecraft. The Commission also tentatively concluded that the 
definition of TT&C need not be so narrowly construed as to exclude data 
downlink operations. We seek comment on a potential Commission 
interpretation of the definitions of space telecommand and space 
telemetry to include downlink of video and other data during maneuvers 
such as RPO or docking with other spacecraft. Can such operations be 
accommodated within the existing typical narrowband parameters of TT&C 
bands? Can operations for inhabitable spacecraft be accommodated in 
TT&C bands? What other operations besides RPO and docking could 
function in TT&C bands? If the Commission adopts an interpretation of 
the definitions of TT&C to include data downlink for RPO, docking, and/
or other operations, should we specifically modify the definitions in 
our rules or add footnotes to the United States Table? We also seek 
comment on whether explicitly permitting video and other wideband data 
communications in allocations used for TT&C could crowd out existing 
narrowband TT&C operations or make it more difficult to permit TT&C 
operations on an unprotected, non-interference basis. We seek comment 
on these questions.
4. Clarifying That Spectrum Use Supporting Emergent Space Operations 
May Fall Within Existing Service Allocations
    35. The Commission tentatively concluded in the ISAM NPRM that 
radiocommunications in support of various ISAM operations could fit 
within numerous existing service allocation definitions and that 
Commission staff would assess whether an applicant's proposed 
communications fall within the applicant's desired service 
allocation(s) on a case-by-case basis. Our rules define service 
allocations according to the ITU definitions, and we rely on these 
definitions when we consider requests for frequency authorization as 
part of our licensing process. Commenters were generally supportive of 
permitting the use of any service allocation for communications in 
support of ISAM operations so long as the operator can demonstrate that 
the communications justifiably fit within the existing service 
allocation definition.
    36. Although we propose to continue to review requests to operate 
space stations within specific service allocations on a case-by-case 
basis to assess whether the proposed communications can justifiably fit 
within the definition of the service allocation, we observe the record 
has generated a number of comments that support the need for greater 
regulatory clarity to spur innovation in this space. For example, some 
commenters raise concerns that without affirmative signals from the 
Commission, some radiocommunication allocations, including the space 
research service, may not be accessible to ISAM operators due to 
uncertainty regarding the scope of the allocation definitions and 
challenges coordinating use of this spectrum with Federal operators. 
Other commenters disagree whether EESS should be expressly excluded 
from case-by-case consideration for ISAM missions. Commenters are 
chiefly concerned with the potential for interference to the important 
services provided through EESS passive and active remote sensing, 
especially in the EESS passive bands where ``the signals emitted by 
EESS (passive) sensors are very weak compared to those emitted by 
active communication services.''
    37. We recognize that interference protection is very important for 
the EESS operations that commenters highlight, and that EESS passive 
operations can be particularly vulnerable to interference. Allowing 
operators to request the use of a particular existing service 
allocation for communications, however, does not permit unfettered 
access to all frequency bands. The ITU has established stringent 
recommendations for the protection of passive sensors from interference 
through ITU-R Recommendation RS.2017 ``Performance and interference 
criteria for satellite remote sensing.'' Additionally, our rules 
require applicants proposing to use specific frequencies to demonstrate 
compliance with ITU rules and recommendations. It is not our view that 
merely allowing operators to apply for frequency authorization using 
frequency bands that are allocated for passive use would make such 
bands available only to operators engaging in active use. Additionally, 
we observe that many EESS active operations have demonstrated an 
ability to share spectrum without the creation of harmful interference 
to other operators through our small satellite licensing process, which 
numerous EESS providers have used since its introduction in 2019. We 
seek comment on this view and observation. Although we certainly take 
seriously any potential for harmful interference to existing users, we 
tentatively conclude that we need not preemptively exclude the EESS 
allocations from case-by-case consideration altogether at this time. We 
seek comment on this tentative conclusion.
    38. In addition to our tentative conclusion not to exclude 
operators from applying to use frequencies in any service allocation in 
which their operations could justifiably fit, we specifically seek 
comment on applicants seeking to operate within the SRS allocation. 
Given the nascent stage of many emergent space operations, we propose 
to consider communications supporting them, particularly when funded by 
NASA or other federal research agencies, as falling within the 
definition of SRS. We seek comment on this proposed approach and 
specifically on what other steps the Commission could take to promote 
regulatory certainty for these operators. For example, could the 
uncertainty be resolved by adding a footnote to the United States Table 
in frequency bands allocated for Federal SRS specifically to permit 
operations of non-Federal operations funded or contracted by NASA or 
other federal research agencies? We also seek comment on the language 
of any such footnote and what additional conditions on such operations 
may be needed to protect Federal SRS operators from harmful 
interference.

B. Unlocking More Spectrum for Emergent Space Operations

    39. We seek comments on ways that spectrum that is already 
allocated for non-Federal use could be made available to address the 
need for spectrum to support emergent space operations. In particular, 
we seek comment whether such spectrum can be identified in frequency 
bands that may currently be used intensively by non-Federal spectrum 
users in certain geographic areas (such as urban, high-population 
areas, particularly in the contiguous 48 states (CONUS), but that may 
not be used in other geographic areas (such as rural areas in CONUS, or 
outside of CONUS and in U.S. Territories and Possessions). In order to 
avoid the challenges of coordinating non-Federal use of spectrum bands 
that are allocated primarily to Federal use, we are particularly 
interested in

[[Page 17921]]

identifying spectrum bands that either are not shared with Federal 
users, or that are shared with, but not used intensively by, Federal 
users and are allocated on a secondary basis for Federal use.
    40. Although our focus is on the specific frequency bands discussed 
below, we also seek comment on whether there are any additional bands 
that could satisfy the criteria identified above and that could 
potentially be used more intensively to provide TT&C for emergent space 
operations. In all cases, our objective is to allow more intensive and 
flexible use of spectrum in a way that avoids interference or economic 
harm to existing spectrum users.
    41. As part of this process, we seek comment generally on what 
changes to the United States Table and our rules would need to be made 
to effectuate such more intensive use domestically, and the specific 
manner in which those changes could be effectuated (for example, by 
creation of an allocation or through a footnote to the United States 
Table). In addition, we seek comment on whether the flexible use, 
leasing/secondary markets, and competitive bidding proposals discussed 
in the specific frequency bands below could also be applied to other 
frequency bands in order to make additional spectrum resources 
available for emergent space operations. We also generally seek comment 
on what, if any changes, are needed internationally to effectuate these 
changes, either through the ITU or through bi-lateral or multi-lateral 
agreements with other countries.
1. 2320-2345 MHz Band
    42. As an example of the type of more intensive spectrum use 
discussed above, we propose to add a secondary allocation for SOS 
(Earth-to-space) in the 2320-2345 MHz band in the non-Federal column of 
the United States Table, and to permit the existing exclusive licensee 
within this frequency band in the United States, SiriusXM, to lease 
portions of its spectrum to earth station licensees for command of 
spacecraft that do not otherwise provide radiocommunication services to 
the public. We discuss the history and current use of the 2320-2345 MHz 
band below, as well as the specifics of the proposal and possible 
alternatives.
a. History and Current Use
    43. The history and current use of the 2320-2345 MHz band are 
important factors in proposing to make this spectrum available to 
address the needs of emergent space operations. The 2320-2345 MHz band 
occupies 25 megahertz of spectrum and is used to provide Satellite 
Digital Audio Radio Service (SDARS) in the United States, as well as 
parts of Canada. It is divided equally between two separate, but co-
owned, SDARS networks, Sirius and XM. The Commission's rules define 
SDARS--commonly known as ``satellite radio''--as 
``[a]radiocommunication service in which audio programming is digitally 
transmitted by one or more space stations directly to fixed, mobile, 
and/or portable stations, and which may involve complementary repeating 
terrestrial transmitters, telemetry, tracking and control facilities.'' 
Thus, SDARS is primarily a satellite-delivered service in which 
programming is sent directly from satellites to subscriber receivers 
either at a fixed location or in motion.
    44. The Commission awarded licenses to provide SDARS within the 
United States by auction in 1997. XM and Sirius launched initial 
satellites and began commercial operations in 2001 and 2002, 
respectively. The two companies merged in 2008 to form a single 
company--Sirius XM Radio, Inc. (SiriusXM)--but the merged entity 
continues to operate the Sirius and XM systems as separate networks and 
there are still separate licenses for each system. Currently, SiriusXM 
and its subsidiary companies have licenses for geostationary-satellite 
orbit (GSO) space stations operating at the nominal 85[deg] West 
Longitude (W.L.) and 115[deg] W.L. orbital locations, which transmit in 
the space-to-Earth direction to subscriber terminals in the 2320-2345 
MHz band, with fixed earth stations providing uplinks in the 7.025-
7.075 GHz band. On-station TT&C for SiriusXM's satellites is provided 
in the X-band for command uplinks and S-band for telemetry downlinks. 
SiriusXM reported it had approximately 32.8 million subscribers as of 
June 30, 2025.
    45. The 2320-2345 MHz band is part of a larger block of spectrum 
from 2305-2360 MHz that is divided between SDARS and Wireless 
Communications Services (WCS) licensees. In 1996, Congress directed 
that this block of spectrum be reallocated from Federal to non-Federal 
use and auctioned.
    46. Within the 2320-2345 MHz band, SiriusXM operates a network of 
terrestrial repeaters in the center portion of each of the two 12.5 
megahertz assigned to Sirius and XM (2320.0-2332.5 MHz and 2332.5-2345 
MHz). Because a direct line of sight is generally required to receive 
an acceptable satellite signal, ground-based terrestrial repeaters are 
used in many areas to re-transmit the same signals provided by 
satellites directly to subscribers in order to maintain adequate signal 
power. SiriusXM may also provide telemetry beacons in each of these 
assignments.
    47. Domestically, the 2320-2345 MHz band is allocated on a primary 
basis for non-Federal BSS, which includes SDARS. Footnote US327 to the 
United States Table states that the band is allocated to BSS (sound) 
and complementary terrestrial repeaters on a primary basis, and such 
use is limited to digital audio broadcasting. The United States Table 
provides Federal allocations for fixed service and radiolocation 
service on a secondary basis, subject to a footnote that recognizes the 
primary allocation for BSS (sound) and restricts radiolocation service 
in this band to the military services.
    48. Internationally, the 2300-2450 MHz band is allocated in ITU 
Regions 2 & 3 to radiolocation services and fixed and mobile 
terrestrial services on a primary basis, and to the amateur service on 
a secondary basis. In ITU Region 1, the 2300-2450 MHz band is allocated 
to fixed and mobile services on a primary basis, and amateur and 
radiolocation services on a secondary basis. There are no allocations 
for satellite services internationally in the 2300-2450 MHz band in any 
of the three ITU regions, but international footnote 5.393 does 
allocate the 2310-2360 MHz band to BSS (sound) on a primary basis in 
Canada, the United States, and India. Currently, BSS (sound) in the 
2310-2360 MHz band is being provided solely in the United States and 
parts of Canada through SiriusXM. The United States entered into 
bilateral agreements with Canada and Mexico regarding the provision of 
SDARS, which remain in force.
b. Suitability for Space Ops
    49. We tentatively find that three factors make the 2320-2345 MHz 
band particularly well suited for more intensive use for TT&C in 
support of emergent space operations. First, the 2320-2345 MHz band is 
located within the S-band and is in relatively close spectrum proximity 
to the 2025-2110 MHz (Earth-to-space) and 2200-2290 MHz (space-to-
Earth) bands already used for Federal space operations. As observed 
above, these two bands are frequently requested for TT&C operations in 
support of ISAM and other spacecraft that do not otherwise provide 
radiocommunication services. Although there is significant separation 
between these Federal S-bands and the 2320-2345 MHz band, the 
propagation characteristics of the spectrum and the antennas and radios 
used to transmit and receive are expected to be similar

[[Page 17922]]

for both the Federal S-bands and the 2320-2345 MHz band. Accordingly, 
we have reason to expect that, from a technical perspective, the 2320-
2345 MHz could be readily used to provide space operation services in a 
manner adequately equivalent to the Federal S-bands. We seek comment on 
these observations and expectations.
    50. Second, there are very few spectrum users of the 2320-2345 MHz 
band in the United States. SiriusXM acquired exclusive use of the 2320-
2345 MHz band at auction in 1997. No other non-Federal operators are 
licensed to operate in the 2320-2345 MHz band in the United States. 
Likewise, there are no primary allocations for Federal operations in 
the 2320-2345 MHz band. As such, we expect that the ability of new 
spectrum users to operate within the 2320-2345 MHz band in the United 
States are not heavily constrained by incumbent operations, other than 
the operations of SiriusXM and incumbent WCS operations in adjacent 
spectrum blocks. We seek comment on this expectation.
    51. Third, SiriusXM does not use the 2320-2345 MHz band uniformly 
throughout the United States. Because of the location of its satellites 
in geostationary orbit at the nominal 85[deg] and 115[deg] W.L. orbital 
locations, none of the existing SiriusXM satellites provide service to 
subscribers in Hawaii, or in the northern portions of Alaska, which we 
characterize as being north of Anchorage. For example, a review of the 
coverage footprints presented in the 2320-2345 MHz band downlinks for 
the newest SiriusXM satellites shows that neither satellite intends to 
use those downlinks in northern Alaska. This is not surprising given 
that satellites located on the equatorial plane, such as GSO 
satellites, appear very low on the horizon to earth stations located in 
far northern and southern latitudes and are susceptible to increased 
signal blockage and attenuation from such a low angle on the horizon. 
Similarly, SiriusXM satellites do not provide downlinks in the 2320-
2345 MHz band to Hawaii or to U.S. Territories and Possessions in the 
Pacific, since the footprints of the service areas of existing SDARS 
satellites are focused on CONUS. Although SiriusXM may elect to provide 
service into northern Alaska, Hawaii, and U.S. Territories and 
Possessions in the future, currently it has not proven feasible to do 
so under its existing deployment of satellites. We seek comment on 
these observations.
    52. In addition, although the 25 megahertz of spectrum in the 2320-
2345 MHz band is less than the spectrum available in the 2025-2110 MHz 
and 2200-2290 MHz bands, 25 megahertz could nonetheless provide 
meaningful additional spectrum resources for space operations. 
Currently, non-Federal operations do not have access to the full 85 
megahertz of spectrum in the 2025-2110 MHz band due to its heavy use by 
Federal operations and the need to avoid particular frequencies within 
the Federal S-band altogether. As a result, only a portion of the 
Federal S-band is able to be coordinated for non-Federal use. Because 
TT&C functions are not always transmitting and employ narrowband 
signals, often 100 kilohertz in bandwidth or less, we anticipate that a 
large number of TT&C communications can be accommodated in the 25 
megahertz of the 2320-2345 MHz band, particularly if multiple earth 
station uplink sites can be coordinated with SiriusXM. Accordingly, we 
tentatively conclude that making the 2320-2345 MHz band accessible for 
TT&C could meaningfully supplement or replace, at least in part, the 
requested use for non-Federal operations in the Federal S-bands. We 
seek comment on this tentative conclusion and the reasoning that 
underlies it.
c. Proposal for Secondary Allocation for SOS in 2320-2345 MHz Band
    53. We propose to create a secondary allocation for SOS in the 
2320-2345 MHz band in the non-Federal column of the United States Table 
in the Earth-to-space direction. We propose a new allocation because 
the current allocations in the band in the United States Table do not 
provide for satellite communications other than BSS (sound) in the 
space-to-Earth direction. We also propose to add this allocation on a 
secondary basis to provide status for the TT&C operations, but to make 
clear that they are secondary to the primary use of the band for BSS 
(sound) in the space-to-Earth direction. These two proposals balance 
the desire for more intensive use of the band for satellite 
communications with the need to protect the operations of SiriusXM in a 
band from harmful interference in which it is exclusively authorized to 
operate throughout the United States. We seek comment on these two 
proposals and on our objective in balancing the interests of more 
intensive spectrum use and the need to protect SiriusXM's use of the 
band.
    54. We tentatively conclude that an SOS allocation in the Earth-to-
space direction is less likely to cause interference to SiriusXM's 
operations in the 2320-2345 MHz band than an allocation in the space-
to-Earth direction. SiriusXM provides sensitive service links to 
subscribers in the 2320-2345 MHz band in the space-to-Earth direction. 
We observe that allowing other space stations to transmit in the 2320-
2345 MHz band could risk causing harmful signal degradation to those 
service links, which could in turn cause subscribers to become 
dissatisfied with their service and to cancel their subscriptions to 
SiriusXM, causing significant economic harm to SiriusXM. Even if space 
stations were restricted by rule to transmitting solely into a 
particular geographic area where there are unlikely to be SiriusXM 
subscribers, such as northern Alaska, there remains the risk of 
disruption to SiriusXM's subscribers if a space station, even 
inadvertently, does not comply with that restriction and transmits over 
CONUS in the 2320-2345 MHz band. Earth-to-space operations in the 2320-
2345 MHz bands can be more easily and reliably geographically 
restricted, with terrain and distance attenuating the risk of any 
interference from Earth-to-space use of the 2320-2345 MHz band into 
SiriusXM's downlink operations in the same band in CONUS. We seek 
comment on this tentative conclusion and the observations underlying 
it, as well as whether it may be possible to allow downlinks in the 
2320-2345 MHz band through a secondary SOS allocation or footnote to 
the United States Table, without causing interference or economic harm 
to SiriusXM. We also propose that any applicant seeking Commission 
authority to operate an earth station in the 2320-2345 MHz band under 
this secondary allocation must certify that the proposed operations in 
the band have been coordinated with and approved by SiriusXM to ensure 
that SiriusXM's operations in the 2320-2345 MHz band are strongly 
safeguarded from interference. We seek comment on this certification 
proposal.
    55. We also seek comment on whether any technical or legal 
requirements need to be adopted by the Commission and codified in our 
rules in order to provide reasonable certainty as to what kind of 
operations are permitted under this secondary allocation. For example, 
would power limits, antenna elevation angle restrictions, or further 
geographical limitations help to protect SiriusXM and spectrum users 
outside of the 2320-2345 MHz band from potential harmful interference 
from earth stations transmitting in the 2320-2345 MHz band? Would such 
limits and restrictions also provide certainty to potential spectrum 
lessees as to the parameters of what operations could be provided? We 
observe that our rules place power limits and out of band

[[Page 17923]]

emission limits on SiriusXM terrestrial repeaters in the 2320-2345 MHz 
band in order to protect WCS licensees in adjacent bands from harmful 
interference. Could such power and out of band emission limitations be 
extrapolated to earth station operations in a way that provides similar 
protection to WCS licensees from earth station uplink transmissions in 
the 2320-2345 MHz band? Would limiting operations of earth stations to 
areas of northern Alaska mitigate the risk of harmful interference to 
spectrum users, particularly WCS licensees, in adjacent and nearby 
bands, given the sparse population density and rugged geography of 
northern Alaska? If so, how would we define these areas in a way that 
is objective and clear? We seek comment on these questions.
d. Proposal To Permit Leased Spectrum in 2320-2345 MHz Band
    56. We propose to permit SiriusXM to lease use of the 2320-2345 MHz 
band spectrum to earth station licensees that will use the frequencies 
to provide command uplinks in support of emergent space operations. 
This proposal aligns with, but is not identical to, the ability of 
wireless radio service licensees to lease spectrum under our existing 
secondary markets policy and rules. We seek comment on how the leasing 
proposal for the 2320-2345 MHz band aligns generally with our secondary 
markets policy and rules.
    57. In 2000, the Commission adopted a policy statement setting 
forth the Commission's plans for facilitating secondary markets for 
radio spectrum to allow and encourage licensees to make all or portions 
of their assigned frequencies and/or service areas available to other 
entities and uses. The Commission found that such secondary market 
transactions would complement the primary assignment function performed 
by the Commission through its spectrum auctions and licensing 
processes. It also found that, while secondary markets are not a 
substitute for finding additional spectrum when needed, and should not 
supplant spectrum allocation processes, a robust and effective 
secondary market for spectrum usage rights could help alleviate 
spectrum shortages by making unused or underutilized spectrum held by 
existing licensees more readily available to other users and uses and 
help to promote the development of new, spectrum efficient 
technologies.
    58. The Commission first adopted rules to implement the secondary 
markets policy in 2003. Although the Commission expressly declined to 
adopt secondary market rules for satellite services at that time, it 
did establish rules whereby certain wireless radio service licensees 
could lease their spectrum to other entities under arrangements that 
are suited to the parties' respective needs. Under our existing 
secondary market rules, terrestrial wireless licensee lessors and their 
lessees have two spectrum leasing options that each provide different 
rights and responsibilities for the wireless licensee and lessee: de 
facto transfer leasing arrangements; and spectrum manager leasing 
arrangements. Under either leasing option, the lessor and the lessee 
may choose to enter into a long-term (more than one year) or short-term 
(one year or less) arrangement. Spectrum manager leasing arrangements 
generally do not require prior Commission approval; rather, the 
licensee/lessor must notify the Commission in advance of commencing 
operations. In contrast, de facto transfer spectrum leasing 
arrangements are typically subject to the Commission's general approval 
procedures, under which the Commission must grant the application prior 
to the parties putting the proposed spectrum leasing arrangement into 
effect.
    59. We seek comment on whether a variation of the de facto transfer 
leasing arrangement may be an efficient and effective way to encourage 
SiriusXM to make the 2320-2345 MHz band available to earth station 
licensees on an expedited basis. As proposed above, any earth station 
licensee that seeks to operate in the 2320-2345 MHz band would have to 
certify that its proposed operations have been coordinated with and 
approved by SiriusXM in order to avoid harmful interference to 
SiriusXM's current and potential operations. We propose that no 
authorization for such uplinks will be accepted for filing absent such 
coordination and approval. We also propose that any existing authority 
to operate in the 2320-2345 MHz band will be conditioned on such 
coordination and approval, and the authority will terminate 
automatically unless the licensee maintains coordination with and 
approval by SiriusXM. Such coordination is likely to require 
expenditure of resources by SiriusXM, or the forgoing of future rights 
to operate in certain areas, for the benefit of third party spectrum 
users. As such, we tentatively conclude it is reasonable for SiriusXM 
to require financial compensation for the expenditures under these 
conditions. For these reasons, we tentatively conclude that SiriusXM 
and potential earth station licensees should be permitted to reach 
private arrangements suited to each party's needs, including financial 
consideration, in order to permit the use of the 2320-2345 MHz band for 
uplink TT&C functions to support emergent space operations. Such 
private leasing arrangements would provide incentive for SiriusXM to 
make as much of its spectrum rapidly available for use by others as 
feasible, while still maintaining protection from interference for its 
own operations in the band. We seek comment on these tentative 
conclusions, proposals, and reasoning underlying them.
    60. Under this leasing proposal, private spectrum leasing 
arrangements with SiriusXM can be made with earth station licensees for 
individual earth stations or for multiple earth stations. They also can 
be made for earth stations communicating with the earth station 
licensee's own space stations, or through an earth station licensee 
that provides Ground-Station-as-a-Service (GSaaS) for multiple third-
party space stations. We seek comment on whether there are efficiencies 
to be gained from conducting TT&C for emergent space operations as 
GSaaS, rather than having each space station license also build its own 
facilities for TT&C. For example, these efficiencies could include 
reducing the overall number of earth stations that need to be 
constructed, coordinated, and licensed, or facilitating the ability of 
TT&C to be provided on an unprotected and non-interference basis 
through a single GSaaS licensee acting as a de facto spectrum 
coordinator. We seek comment on these questions.
    61. We also propose that space stations can be authorized by the 
Commission to receive in the 2320-2345 MHz band without needing to 
certify that such use has been coordinated with and approved by 
SiriusXM, but such authority would be limited to reception of commands 
from earth stations licensed by the FCC or from earth stations located 
outside of the United States. For reception of commands in the 2320-
2345 MHz from earth stations located outside the United States, we 
tentatively see no harm should such TT&C uplinks be permitted outside 
the United States, since SiriusXM satellites do not receive in the 
2320-2345 MHz band and there are no SiriusXM subscribers outside the 
United States, with the exception of Canada. We seek comment on these 
proposals for earth and space station applications in the 2320-2345 MHz 
band.
    62. We also propose, unlike the spectrum leasing arrangements under 
our secondary markets policy and rules, lessees of the 2320-2345 MHz 
band will

[[Page 17924]]

be licensed for earth stations under the proposal made today. As 
proposed above, entities wishing to use the 2320-2345 MHz band to 
provide command uplinks must still obtain an earth station license from 
the Commission prior to transmitting in the band and will be subject to 
all licensing and regulatory requirements applicable to earth station 
licensees. A review of the license application will allow the 
Commission to review the lessee's qualifications under section 310 of 
the Act. We seek comment on this proposal and whether instead the 
Commission should seek to adopt the requirements for approving long and 
short term de facto transfers of control of spectrum under our spectrum 
leasing rules applicable to wireless radio services, which generally 
presume that no separate Commission license is needed to permit the 
operations using leased spectrum.
    63. We also seek comment on whether a variation of the spectrum 
manager lease approach could be adopted in the 2320-2345 MHz band in 
which SiriusXM retains legal control and remains primarily responsible 
for ensuring lessees' compliance with our rules and policies We seek 
comment on whether requiring a license for the earth station operations 
in the leased spectrum would allow better assurance that interference 
is not caused to SiriusXM or other adjacent spectrum users and would 
allow the Commission to check compliance with any geographic areas 
restrictions on the use of the spectrum. The Commission would still 
review the qualifications of the lessees through their applications to 
operate earth stations using the leased spectrum, and the use of the 
leased spectrum would be expressly authorized by the Commission through 
the earth station licenses. As a result, we tentatively conclude that 
the de facto transfer lease approach (modified by requiring an earth 
station license) avoids the need for potentially complicated 
notification and eligibility requirements designed under the spectrum 
manager lease approach to address compliance of the lessee with our 
rules and policies. We seek comment on this approach and tentative 
conclusions, as well as whether we should adopt a spectrum manager 
approach instead of a de facto transfer approach.
    64. We also seek comment on whether SiriusXM is obliged to lease or 
coordinate use by others of its exclusive use spectrum under the leased 
spectrum, secondary markets proposal above, or under any of the 
alternatives discussed in the NPRM. We also seek comment on whether the 
incentives provided by the leased spectrum, secondary markets proposal 
would make additional spectrum resources available more quickly and 
efficiently than a process that provides no incentives for SiriusXM to 
forego use of its exclusive use spectrum and to expend resources on 
coordination solely for the benefit of other potential spectrum users.
e. International Issues
    65. We seek comment on any international issues that may arise from 
our proposal to allow the use of the 2320-2345 MHz band for command 
uplinks to non-communications satellites. We tentatively conclude that 
authorizing earth stations in the United States to transmit in the 
2320-2345 MHz band for command uplink would be unlikely to cause 
harmful interference to spectrum users in other countries that do not 
share borders with the United States. As observed above, only the 
United States, India, and Canada stated an intent to use this band for 
satellite communications, and only the United States and Canada are 
actually using the band for satellite communications. In the remainder 
of the world, this band is used for terrestrial fixed and mobile 
communications. The geographic distance between transmitting earth 
stations in the United States and the terrestrial operations of other 
countries is likely to attenuate greatly any in-band or out of band 
emissions, thereby avoiding interference to those terrestrial 
operations. We seek comment on this observation and the potential of 
interference to the terrestrial operations of other countries. In 
addition, the current bilateral agreements with Canada and Mexico do 
not address such Earth-to-space operations in the 2320-2345 MHz band. 
To what extent would the United States need to request changes to those 
agreements in order to implement the proposal, if it is adopted? We 
also seek comment on whether space stations could receive commands in 
the 2320-2345 MHz band, on either a protected or unprotected basis, 
consistent with the ITU Radio Regulations, absent an allocation for SOS 
in the International Table.
    66. We also seek comment on to what extent other countries might 
explore ways to authorize earth stations to provide command uplinks in 
the 2320-2345 MHz band if there is sufficient demand globally for such 
services. We observe that global networks of TT&C facilities are often 
used for NGSO spacecraft that do not remain fixed relative to a 
location on the earth, unlike GSO spacecraft. Although the 2320-2345 
MHz band is allocated on a primary basis for terrestrial fixed and 
mobile service in the rest of the world, and is not allocated for 
satellite communications, individual countries may be amenable to 
licensing earth stations at fixed locations to uplink in this band, if 
those uplinks would not cause harmful interference to terrestrial and 
mobile services in the band. Of course, this is a matter of decision 
for the regulatory authorities of other countries, but we seek comment 
on these observations and whether world-wide facilities are needed to 
provide TT&C in the 2320-2345 MHz band to spacecraft that do not 
otherwise provide radiocommunication services to the public.
f. Potential Alternatives
    67. We seek comment on alternatives to the specific proposals 
above. In particular, we seek comment on whether allowing the use of 
the 2320-2345 MHz band for command uplinks to non-communication 
satellites or spacecraft could be better effectuated through a non-
governmental (NG) footnote to the United States Table than through a 
secondary allocation. For example, the footnote could state that ``the 
frequency band 2320-2345 MHz can also be used for command uplinks to 
non-Federal space stations in the Earth-to-space direction.'' If 
additional restrictions are desired on those operations, such as 
limiting them to a particular geographic area, those restrictions could 
be incorporated into the text of the footnote. In this regard, such 
restrictions may not be necessary in the footnote, since the footnote 
would only apply in the United States to non-Federal communications, 
such that any such transmitting earth stations conducting those 
communications would need to be licensed by the Commission and would 
have to comply with any Commission rules that could also set forth 
restrictions on use of the band. We seek comment on the possible 
advantages and disadvantages of allowing use of the 2320-2345 MHz band 
for command uplinks in the Earth-to-space direction by footnote, in 
addition to or in lieu of a secondary allocation for SOS, and what 
should be the specific language of any such footnote.
    68. We also seek comment on whether to allow earth stations to 
provide command uplinks to non-communications satellites in the 2320-
2345 MHz band within a defined geographic area, such as an area of 
northern Alaska defined by latitude, without requiring coordination and 
approval of SiriusXM. If SiriusXM

[[Page 17925]]

satellites do not currently provide service into these areas, there may 
not be need for coordination and approval prior to operations to avoid 
harmful interference to SiriusXM operations in the 2320-2345 MHz band. 
Although such a process would obviate the need for SiriusXM to lease 
spectrum or to spend resources reviewing coordination requests, is it 
possible to adequately define the area of operations where coordination 
would not be necessary? Is it possible to foresee and address potential 
cases of harmful interference in advance and to adopt rules to prevent 
them, rather than relying on the parties to address potential harmful 
interference concerns on a case-by-case basis, and to reach an 
arrangement suitable to both parties? Does such a process take into 
account the fact that SiriusXM maintains the ability to provide service 
in all of the United States? We seek comment on these questions.
    69. In addition, we seek comment on whether there are other market 
mechanisms, such as competitive bidding, that could be used to 
effectuate the efficient and expeditious use of the 2320-2345 MHz band 
for command uplinks consistent with statutory limitations. For example, 
could the Commission auction earth station licenses to operate in the 
United States, using the 2320-2345 MHz band spectrum that may not be 
internationally allocated for satellite communications? We seek comment 
on whether more intensive use of the band could be effectuated by 
auctioning the use to bidders who value the spectrum the highest for 
operations in a particular geographic area, for example by auctioning 
the use of the 2320-2345 MHz band for command uplinks in a specific 
geographic area to a single earth station licensee. If so, how would we 
define those geographic areas? Are any restrictions or other 
limitations needed on what entities are eligible to bid for the 
spectrum use in a geographic area? We seek comment on these questions.
    70. We also seek comment on our statutory authority to use auctions 
to authorize earth station operations using the 2320-2345 MHz band. The 
Open-market Reorganization for the Betterment of International 
Telecommunications Act, enacted in 2000 (ORBIT Act), prohibits the 
Commission from assigning orbital locations or spectrum used for the 
provision of international or global satellite communications services 
through competitive bidding (i.e., auctions). This prohibition, 
codified at 47 U.S.C. 765f, was intended to prevent the imposition of 
auction-based licensing regimes on international satellite operators, 
which could lead to burdensome and duplicative auction requirements in 
multiple jurisdictions. We ask for comment on these questions in the 
specific context of our proposals to authorize earth stations to 
provide command uplinks to non-communication satellites and spacecraft 
in the 2320-2345 MHz band. Does the fact that the proposal does not 
seek to use competitive bidding for orbital locations comport with both 
the letter and intent of the ORBIT Act? Does the fact that SiriusXM 
provides SDARS service into Canada in the 2320-2345 MHz band transform 
the band into spectrum ``that is used for the provision of 
international or global satellite communications services,'' even 
though the purpose for which the 2320-2345 MHz band could be used is 
not SDARS, but SOS, which is not currently being provided in the 2320-
2345 MHz band anywhere in the world? Are SOS or TT&C ``international or 
global satellite communications services'' as that term is used in the 
ORBIT Act?
2. Possible Application to Other Frequency Bands
    71. We seek comment on whether there are frequency bands, besides 
the 2320-2345 MHz band, that are allocated for non-Federal use that 
could be used more intensively to address the need for spectrum for 
emergent space operations. Although the 2320-2345 MHz band appears 
particularly promising due to the exclusive use of the band by a single 
non-Federal licensee, low level of use by Federal operations, and the 
proximity of the spectrum to existing S-band spectrum that is in high 
demand, we seek comment on whether there are other frequency bands that 
also possess these characteristics. In particular, we seek comment on 
whether frequency bands adjacent to the 2320-2345 MHz band could also 
be made available, in the same or similar manner as the proposals for 
the 2320-2345 MHz band, for the provision of command uplinks to 
spacecraft that do not otherwise provide radiocommunication services.
a. 2315-2320 MHz and 2345-2350 MHz
    72. On each side of the 2320-2345 MHz band that is used for SDARS 
subscriber downlinks are five megahertz of spectrum that served as 
``guard band'' spectrum between SDARS and WCS operations in the 2305-
2315 MHz and 2350-2360 MHz bands. These two spectrum bands, known as 
WCS Blocks C & D, were acquired by SiriusXM in 2024. We seek comment on 
whether these two 5-megahertz spectrum bands could also be used to 
provide command uplinks similar to the proposed use in the 2320-2345 
MHz band.
    73. If the 2315-2320 MHz and 2345-2350 MHz bands were to be used to 
provide command uplinks similar to the proposed use of the 2320-2345 
MHz band, the same mechanisms--adding a secondary allocation for SOS or 
by adding a footnote to the non-Federal column of the United States 
Table--could be used to implement such use. Likewise, we propose that 
any use of the bands by applicants for earth station licenses would 
require certification that the proposed operations have been 
coordinated with and approved by SiriusXM and subject to any spectrum 
leasing regimes that may be adopted for the 2320-2345 MHz band. We seek 
comment on the use of the 2315-2320 MHz and 2345-2350 MHz bands for 
uplink commands to non-communications satellites. We also seek comment 
on use of these bands under any of the alternatives discussed above. In 
addition, footnote US100 provides for use of the 2345-2360 MHz band for 
Federal aeronautical telemetering and associated telecommand operations 
for flight testing of manned or unmanned aircraft, missiles, or major 
components thereof, on a secondary basis to WCS. Would additional 
technical or geographic restrictions on earth station uplinks in the 
2345-2350 MHz band be necessary to protect such Federal secondary 
allocations from harmful interference? Footnote US97 states that WCS 
base stations in the 2305-2320 MHz band must be subject to a 
coordination agreement with NASA prior to operations within 145 
kilometers of Goldstone, California. Would additional technical or 
geographic restrictions be necessary to protect the NASA radioastronomy 
site in Goldstone from harmful interference in the 2315-2320 MHz band, 
as required for WCS base stations operating in that band under footnote 
US97? Would a requirement for prior coordination of any earth stations 
seeking to provide command uplinks in the 2315-2320 MHz band within 145 
kilometers of Goldstone be adequate to provide the same level of 
protection that NASA currently has for WCS operations in the 2305-2320 
MHz band? The near adjacent 2360-2395 MHz band is allocated on a 
primary basis for Federal and non-Federal aeronautical mobile telemetry 
(AMT) for flight testing, and WCS base station operations in the 2345-
2360 MHz band must be coordinated to ensure AMT receive stations are 
protected. Would additional technical or geographic restrictions on 
earth station uplinks in the 2345-2350

[[Page 17926]]

MHz band be necessary to protect Federal and non-Federal flight test 
operations in the 2360-2395 MHz band from harmful interference caused 
by SOS out-of-band emissions? We also seek comment on the impact that 
use of the 2315-2320 MHz and 2345-2350 MHz bands for command uplinks 
could have on the proposed use of these bands by SiriusXM for the 
provision of public safety communication services originating from 
SiriusXM satellites.
b. 2305-2315 MHz and 2350-2360 MHz
    74. We seek comment on whether a secondary allocation for SOS could 
also be made in the 2310-2320 MHz band and 2350-2360 MHz band in the 
non-Federal column of the United States Table in the Earth-to-space 
direction and whether to allow WCS licensees, particularly AT&T, to 
lease the use of the spectrum that they acquired through competitive 
bidding to earth station licensees to provide uplink commands to non-
communications satellites in a manner similar to that proposed for the 
2320-2345 MHz band.
    75. As observed above, the 2320-2345 MHz band is part of a larger 
block of spectrum from 2305-2360 MHz that is divided between WCS and 
SDARS licensees. Within this block of spectrum, 2305-2310 MHz is 
allocated on a primary basis to non-Federal operations in the fixed, 
mobile (except aeronautical mobile), and radiolocation services. There 
is also a secondary non-Federal allocation for the amateur service. 
There are no Federal allocations in 2305-2310 MHz, although footnote 
G122 provides that Federal operations may be authorized on a non-
interference basis to authorized non-Federal operations and shall not 
constrain the implementation of any non-Federal operation. In addition, 
footnote US97 states that space-to-Earth operations in the 2305-2310 
MHz band are prohibited, and that WCS base stations in the 2305-2320 
MHz band must be subject to a coordination agreement with NASA prior to 
operations within 145 kilometers of Goldstone, California.
    76. The 2310-2320 MHz band has primary allocations for non-Federal 
fixed, mobile, and radiolocation services, as well as a primary 
allocation for BSS (sound). There are secondary allocations in this 
band for Federal fixed, mobile, and radiolocation services. The 2310-
2320 MHz band also is subject to footnote US97. Footnote US100 also 
provides for use of the band for Federal aeronautical telemetering and 
associated telecommand operations for flight testing of manned or 
unmanned aircraft, missiles, or major components thereof, on a 
secondary basis to WCS, and that 2312.5 MHz is shared on a co-equal 
basis by Federal stations for telemetering and associated telecommand 
operations of expendable and reusable launch vehicles. Footnote US100 
also provides that other Federal mobile telemetering uses may be 
provided in the 2310-2320 MHz band on a non-interference basis to all 
other uses authorized pursuant to footnote US100.
    77. The 2345-2360 MHz band has the same allocations as the 2310-
2320 MHz band, and is also subject to footnotes G2, US100, and US327. 
Provisions of footnote US100 that made the 2324-2360 MHz band available 
for non-Federal aeronautical telemetering and telecommand flight 
testing operations on a secondary basis to WCS expired on January 1, 
2020.
    78. WCS was established in 1997. Mutually exclusive initial 
applications for WCS in the 2305-2320 MHz and 2345-2360 MHz bands are 
subject to competitive bidding, and in 1997 the Commission auctioned 
and issued 128 WCS licenses. WCS licenses are issued by FCC market 
areas and channel blocks, with 12 Regional Economic Area Groupings 
(REAG) and 52 Major Economic Areas (MEA). Blocks A (2305-2310 MHz and 
2350-2355 MHz) and B (2310-2315 MHz and 2355-2360 MHz) are issued by 
MEAs, and blocks C (2315-2320 MHz) and D (2345-2350 MHz) are issued by 
REAGs. AT&T currently holds all WCS licenses in Blocks A and B. Thus, 
similar to SiriusXM in the 2320-2345 MHz band, AT&T has exclusive use 
of the Block A and B licenses in the 2305-2315 MHz and 2350-2360 MHz 
bands.
    79. We seek comment on whether, for the same reasons discussed 
above for the 2320-2345 MHz band, the 2305-2315 MHz and 2350-2360 MHz 
bands could be well suited for more intensive use for command uplinks 
in support of emergent space operations. First, the two bands are also 
relatively close in proximity to the Federal S-band spectrum that is 
currently being requested for command and control of ISAM and other 
spacecraft that do not otherwise provide radiocommunication services to 
the public. In addition, allowing leased use of the 2305-2315 MHz and 
2350-2360 MHz bands for command uplinks would provide nearly contiguous 
45 megahertz of S-band spectrum, or 55 megahertz of contiguous S-band 
spectrum if the 2315-2320 MHz and 2345-2350 MHz bands were also allowed 
leased use for command uplinks. Second, there are relatively few 
existing licensed users of the bands, with AT&T having exclusive, or 
near exclusive use, of the bands in the United States. Finally, similar 
to the situation with SiriusXM, AT&T does not operate in Blocks A and B 
uniformly throughout its licensed areas, and there may be geographical 
areas where earth stations may be able to transmit without causing 
harmful interference to AT&T's current or future operations. We expect 
that this may be particularly true in remote and rural areas, such as 
northern Alaska. We seek comment on these observations and 
expectations.
    80. We also seek comment on whether the same general framework 
could be implemented for making spectrum available in the 2305-2320 MHz 
and 2350-2360 MHz bands that was discussed for the 2320-2345 MHz band, 
that is, adding a secondary allocation for SOS in the bands or 
alternatively adding a footnote to the United States Table to permit 
SOS in the bands, and allowing AT&T to lease use of its spectrum in the 
2305-2315 MHz and 2350-2360 MHz bands (Blocks A and B) to earth station 
licensees to provide command uplinks to spacecraft that do not 
otherwise provide radiocommunication services, subject to a 
certification by the earth station licensee that the proposed 
operations have been coordinated with and approved by AT&T. We observe 
that the Commission already permits leased access to WCS spectrum, 
including that held currently by AT&T, through secondary market 
mechanisms, although those mechanisms are limited to the provision of 
wireless radio services and do not apply to use of the spectrum by 
earth stations to provide SOS. We seek comment on what changes to our 
rules would be necessary to permit AT&T to lease use of its Block A and 
B WCS spectrum for use by earth station licensees to provide command 
uplinks in support of emergent space operations. Are there any concerns 
for such leasing of spectrum by AT&T that are not implicated by the 
proposed leasing of the 2320-2345 MHz band by SiriusXM? We seek comment 
on these questions.
    81. We also seek comment on whether there should be any technical 
or geographic restrictions or limitations on the use of the 2305-2315 
MHz and 2350-2360 MHz bands that are different from technical or 
geographic restrictions in the 2320-2345 MHz band. For example, 
footnote US100 provides for use of the 2310-2320 MHz band and 2345-2360 
MHz band for Federal aeronautical telemetering and associated 
telecommand operations for flight testing of manned or unmanned 
aircraft, missiles, or major components thereof, on a secondary basis 
to WCS. We also seek comment on whether coordination with Aerospace and 
Flight Test Radio

[[Page 17927]]

Coordinating Council (AFTRCC) and Federal AMT coordinators would be 
needed to protect AMT operations in the 2360-2395 MHz band, much as WCS 
base stations operating in the 2350-2360 MHz band must coordinated 
today with AFTRCC. Would additional technical or geographic 
restrictions on earth station uplinks in these bands be necessary to 
protect such Federal secondary allocations from harmful interference? 
Similarly, would additional technical or geographic restrictions be 
necessary to protect the NASA radioastronomy site in Goldstone from 
harmful interference in the 2305-2320 MHz band, as required for WCS 
base stations operating in that band under footnote US97? Would a 
requirement for prior coordination of any earth stations seeking to 
provide command uplinks in the 2305-2320 MHz band within 145 kilometers 
of Goldstone be adequate to provide the same level of protection that 
NASA currently has for WCS operations in the 2305-2320 MHz band? Would 
new earth station uplink operations be compatible with sensitive Moon 
bounce operations conducted under the amateur radio service in the 
2305-2310 MHz band? We also seek comment on whether it may be possible 
to allow downlinks in the 2305-2315 MHz and 2350-2360 MHz bands through 
a secondary SOS allocation or footnote to the United States Table, 
without causing interference or economic harm to WCS licensees or other 
authorized Federal or non-Federal spectrum users in the same or 
adjacent spectrum bands.
    82. We also seek comment on any international issues that may arise 
from our proposal to allow the use of the 2305-2315 MHz and 2350-2360 
MHz bands for command uplinks to spacecraft that do not otherwise 
provide radiocommunication services. We observe that these bands are 
subject to the same allocations internationally as the 2320-2345 MHz 
band. Are any differences expected in the potential for interference to 
spectrum users outside of the United States from those addressed above 
in the context of our proposal for the 2320-2345 MHz band? Would any 
changes to the current bilateral agreements with Canada and Mexico be 
needed to address Earth-to-space operations in the 2305-2315 MHz and 
2350-2360 MHz bands that would not be needed to address such operations 
in the 2320-2345 MHz band? Could stations could receive commands in the 
2305-2315 MHz and 2350-2360 MHz bands, on either a protected or 
unprotected basis, consistent with the ITU Radio Regulations, absent an 
allocation for SOS in the International Table? To what extent might 
other countries explore ways to authorize earth stations to provide 
command uplinks in the 2305-2315 MHz and 2350-2360 MHz bands if there 
is sufficient demand globally for such services? If other countries 
allow use of these bands for SOS, could such frequencies be considered 
to be spectrum ``that is used for the provision of international or 
global satellite communications services'' under the ORBIT Act? We seek 
comment on these questions.
    83. We also seek comment on whether any future auctions involving 
WCS license that are currently in inventory might specifically address 
the ability of future WCS licensees to lease spectrum to earth station 
licensees to provide command uplinks to spacecraft that do not 
otherwise provide radiocommunication services. We observe that there 
are ten WCS licenses in the Pacific Island REAG that are in the 
Commission's inventory of spectrum. Would the value of such licenses be 
increased in an auction if the winner would also be able to lease 
spectrum to earth station licensees to provide command uplinks to 
spacecraft that do not otherwise provide radiocommunication services? 
Would the ability of earth station licensees to provide such command 
uplinks in the Pacific Islands be useful in creating a global network 
of TT&C facilities that are often used for NGSO spacecraft? We seek 
comment on these questions.
3. Intersatellite Links
    84. We seek comment on whether licensed satellite operators should 
be authorized by rule to use their FCC-licensed satellites and 
intersatellite links to provide TT&C and data downlinks in support of 
emergent space operations, without the need to file a modification or 
obtain additional authorization from the Commission. We expect that 
such authorization could provide additional spectrum because it will 
allow the use of off-the-shelf equipment, such as MSS user terminals, 
and already established ground and space infrastructure. Additionally, 
we expect such authorization could open up a new avenue of business for 
established NGSO or GSO space station licensees if there is a 
regulatory framework for clear authorization for these kinds of 
radiofrequency communications. We seek comment on these expectations.
    85. Many spacecraft that are used to test technologies or perform 
experiments on-orbit do not have large antennas. This is largely due to 
financial and launch constraints, and the need for satellites to be 
small. Since the spacecraft are not intended to provide 
radiocommunication service to the public, much of a spacecraft's mass 
could be taken up by non-radio equipment, such as robot arms or other 
tools, and radios and antennas will need to be as small as possible. As 
a result, many small satellites and experimental satellites rely on 
intersatellite links whereby one satellite sends data and TT&C 
information to the ground via another satellite system. The Commission 
has experience with this kind of arrangement for experimental part 5 
satellite applications and Iridium companion filings. In this 
arrangement, an experimental satellite operator files a part 5 
application for experimental authority and the other satellite system 
then files a companion application for part 5 experimental authority to 
communicate with the other experimental satellite using its 
constellation that is licensed under part 25. We observe that this can 
be a cost-effective way for many new companies to deploy experimental 
satellites because they do not have to invest in large antennas or an 
extensive ground station network. We seek comment on this observation.
    86. We seek comment on allowing space stations already licensed by 
the Commission to use intersatellite links to provide TT&C and payload 
data downlinks and uplinks to and from spacecraft that do not otherwise 
provide radiocommunication services. Are there any concerns with 
allowing satellite operators to communicate with such spacecraft via 
intersatellite links without the need to file a modification? Should we 
require these operators, like Iridium, to file a notification that they 
consent to the communications as part of the license application, or 
should the obligation fall on the applicant to certify that the other 
satellite system operator has consented to the intersatellite links? We 
seek comment on these questions.
    87. Additionally, should we limit or identify the specific 
frequency bands in which intersatellite links may be used in connection 
with spacecraft that do not otherwise provide radiocommunication 
service? We expect that satellite operators already licensed to use 
specific frequencies for intersatellite links, like Iridium, are best 
placed to coordinate the use of their licensed spectrum and determine 
the amount of capacity they have to provide intersatellite links to 
other spacecraft. Should we allow operators to use these intersatellite 
links in any frequency band in which their satellite partner (e.g., 
Iridium would be the satellite

[[Page 17928]]

partner for part 5 experimental satellites described above) is licensed 
and willing to offer the intersatellite service? It is also likely that 
other satellite operators besides Iridium will be able to offer this 
proposed intersatellite link service if the Commission provides a 
regulatory pathway. Are there additional interference concerns that 
need to be considered if multiple NGSO or GSO satellite operators are 
providing intersatellite links in support of emergent space operations? 
We seek comment on these questions.
    88. We also seek comment on how to address international 
coordination of such intersatellite links, given the absence of an 
international allocation for inter-satellite links and the ongoing 
discussion of intersatellite links at recent World Radio Conferences 
(WRC). Should we only allow intersatellite links in bands that are 
allocated internationally for intersatellite links? Should we allow 
intersatellite links as a non-conforming use provided that applicants 
provide compatibility showings? We seek comment on these questions.
    89. Finally, we seek comment on any other changes to our rules or 
allocations under the United States Table that would be necessary to 
facilitate the ability of spacecraft to communicate with existing 
commercial communications satellites in NGSO or GSO to relay TT&C or 
payload data. How would any changes to existing rules and allocations 
be consistent with studies or initiatives that have been made 
internationally, particularly at the WRC regarding this type of 
activity? What further steps would be necessary to allow this 
domestically and/or internationally? We seek comment on these 
questions.

C. Benefits and Costs

    90. The rules we propose, if adopted, will make additional spectrum 
available for spacecraft engaged in TT&C functions while also promoting 
efficiency by clarifying our rules concerning TT&C. In particular, we 
expect that our proposals would significantly reduce costly federal 
coordination for TT&C missions by making available a non-federal 
alternative. We estimate that total cost savings from this and other 
proposals would amount to approximately $6.8 million per year. We 
therefore tentatively conclude that the proposed rules are in the 
public interest. We seek comment on these findings.
    91. The NPRM first proposes or seeks comment on codifying several 
Commission policies to provide additional regulatory clarity for these 
operators. This includes (1) codification of frequency piggybacking; 
(2) allowing additional applications for frequencies for emergent space 
operations under existing service allocations; (3) permitting TT&C 
functions within existing radiocommunication service allocations; and 
(4) refining the definition of TT&C. To the extent that lack of clarity 
in our rules has prevented stakeholders from engaging in certain TT&C 
operations, we could anticipate real benefits of providing stakeholders 
with regulatory clarity. We seek comment on this tentative conclusion.
    92. We find that the proposal to add a secondary allocation for SOS 
in the 2320-2345 MHz band will benefit the public by reducing 
regulatory costs. The proposal could potentially eliminate costly 
coordination with NTIA to use Federal bands for TT&C by giving a non-
Federal alternative. While leasing the 2320-2345 MHz band may entail a 
payment to SiriusXM, this payment is a pure transfer from the operator 
to SiriusXM and so has no effect on total costs and benefits. 
Negotiating with SiriusXM would generate some new costs, but these 
would be smaller than the costs of coordinating with NTIA or else 
operators would not seek to negotiate with SiriusXM. Further, operators 
could set up a longstanding contract with SiriusXM, limiting 
negotiation during the term of the contrast. By contrast, at present, 
to the extent that operators are unable to conduct TT&C functions 
within non-Federal bands such as those for FSS, MSS, BSS, or EESS, 
operators must engage in frequency coordination with NTIA to use the S-
band or other Federal allocations of spectrum on a case-by-case basis. 
We also believe that the proposal has the potential to generate 
additional space operations by expanding the total bandwidth available 
to space operators and allowing operations that may not have been 
justified by the costs and uncertainty of NTIA coordination, which is 
not guaranteed to result in approval. We seek comment on these 
observations.
    93. We estimate the magnitude of the annual regulatory cost savings 
to be $8.2 million. We estimate this by assuming the NTIA coordination 
process is handled on the operator's side by a team of two lawyers and 
two engineers. We assume they work through the application process over 
two months, which we approximate as eight forty-hour workweeks or three 
hundred and twenty work hours for each worker. We estimate that the 
lawyers have an hourly compensation of $106.10/hour and that the 
engineers have an hourly compensation of $94.64. Total compensation for 
one space operator's team in an NTIA coordination is therefore 
$128,473.60. We estimate on the NTIA side, a team of three government 
employees handle the coordination. We estimate the average government 
hourly compensation is $80.67, so the total NTIA team compensation for 
the coordination process is $77,443.20. The total labor costs of 
coordination combining both private and public expenses is $205,916.80. 
Based on the number of application requests in the Federal S-band 
(2025-2110 MHz) from 2021 to 2025, we estimate the future average for 
such applications to be about 80. Not all of these applications are 
related to TT&C, and we assume that some operators will rely on non-
Federal bands or prefer to continue coordinating with NTIA, so we 
estimate that only 50% of applications, 40 annually, will be replaced 
by leases in the 2320-2345 MHz band. Multiplying this number by the per 
coordination labor costs results in a total annual labor cost saving of 
approximately $8.2 million. Total benefits would equal the economic 
value of additional operations allowed by the new spectrum plus the 
cost savings. Given the uncertain nature of additional operations, we 
do not estimate them here, such that $8.2 million is a lower bound on 
benefits. We seek comment on this methodology.
    94. We estimate additional negotiation costs by assuming every 
negotiation between a space operator and SiriusXM is handled by two 
teams of two lawyers. Using the 2025-2110 MHz band allows operators to 
avoid the complex coordination needed for other bands, so that we 
assume no engineers are involved and the negotiation time falls to two 
weeks. With these assumptions, and the earlier assumption of hourly 
compensation for lawyers being $106.10/hour, total negotiations costs 
for each lease is only $33,952.00. Assuming, again, 40 leases leads to 
total negotiation costs of approximately $1.4 million. These costs are 
likely to be front-loaded because we predict negotiations will result 
in long-term contracts, allowing operators to bypass such costs for a 
number of years. The long-run average negotiation cost is likely lower 
than $1.4 million, so $1.4 million represents an upper bound on costs. 
The lower bound of $8.2 million for benefits is higher than the upper 
bound of $1.4 million for costs, so we tentatively conclude that the 
benefits of the 2320-2345 MHz band proposal will exceed its costs and 
be at least $6.8 million, annually. We seek comment on this 
methodology.

[[Page 17929]]

    95. We postpone until a later date estimating the benefits and 
costs associated with possible secondary allocations in addition to the 
2320-2345 MHz band. Currently, we do not have a specific proposal on 
how to implement other secondary allocations, so it is not possible to 
estimate benefits or costs at this time. We seek comment on this 
tentative conclusion.
    96. Although we only seek comment on whether satellite operators 
should be authorized by rule to use their FCC-licensed satellites and 
intersatellite links to provide TT&C and data downlinks to spacecraft, 
we can tentatively estimate benefits as costs avoided from no longer 
needing to file modification applications. Currently, there are about 
25 annual applications for experimental modifications for TT&C related 
activities, so we will assume that number of applications going 
forward. Applications involve labor costs from a lawyer, which we 
estimate to be 1.5 hours of work at a total hourly compensation of 
$106.10/hour. We will assume the avoided fee is equal to $140, the 
modification fee for experimental licenses. Total benefit from the 
intersatellite links proposal is then approximately $7.4 thousand, 
which is a lower bound given potentially higher future demand for 
intersatellite links and additional space operations that might be 
spurred on by lower costs. We predict no costs would result from simply 
reducing application requirements, so we conclude that the net benefit 
of the intersatellite links proposal also has a lower bound of $7.4 
thousand. While this is positive, it is only a small increase relative 
to the net benefits of the 2320-2345 MHz band proposal, so to avoid an 
impression of false precision, we do not add this to the net benefit 
total. We seek comment on this methodology.

Initial Regulatory Flexibility Analysis

    97. As required by the Regulatory Flexibility Act of 1980, as 
amended (RFA), the Commission has prepared the Initial Regulatory 
Flexibility Analysis (IRFA) of the policies and rules proposed in the 
NPRM assessing the possible significant economic impact on a 
substantial number of small entities. The Commission requests written 
public comments on this IRFA. Comments must be identified as responses 
to the IRFA and must be filed by the deadlines for comments specified 
on the first page of the NPRM. The Commission will send a copy of the 
NPRM, including the IRFA, to the Chief Counsel for the Small Business 
Administration (SBA) Office of Advocacy. In addition, the NPRM and IRFA 
(or summaries thereof) will be published in the Federal Register.

A. Need for, and Objectives of, the Proposed Rules

    98. In the NPRM, we initiate this rulemaking proceeding seeking 
comment on ways in which to make additional spectrum available to 
support emergent space operations. We continue our efforts to identify 
spectrum or ways in which spectrum can be used more efficiently to 
support emergent space operations. We therefore propose to establish 
regulatory clarity for the use of existing spectrum allocations in 
support of emergent space operations, and to codify certain Commission 
policies to provide further regulatory clarity. We also propose to make 
additional non-Federal spectrum available for TT&C in support of 
emergent space operations.
    99. The primary objectives of the proposals in the NPRM are to 
identify additional spectrum for spacecraft that conduct emergent space 
operations and to identify ways in which existing allocated spectrum 
can be used more efficiently to support such spacecraft. To that end, 
the NPRM proposes to codify the use of frequency piggybacking to allow 
certain spacecraft engaged in servicing a client spacecraft to operate 
in frequency bands consistent with the client's authorized 
radiofrequency communications. The NPRM seeks comment on how to codify 
the potential use of frequency piggybacking, how such codification 
might be structured to accommodate a broad range of scenarios while 
ensuring both regulatory certainty and operational flexibility, and 
whether additional use cases--beyond servicing, monitoring, or 
collaborating with a client spacecraft--should also be considered for 
piggybacking. The NPRM also proposes to refine the definition of 
``TT&C'' to encompass radiofrequency usage by spacecraft that do not 
otherwise provide radiocommunication services and to permit TT&C within 
existing radiocommunication service allocations.
    100. Finally, the NPRM proposes to add a secondary allocation for 
space operation service (SOS) (Earth-to-space) in the 2320-2345 MHz 
band in the non-Federal column of the U.S. Table of Frequency 
Allocations (United States Table), and allow leasing of spectrum by the 
exclusive licensee within this frequency band in the U.S., to earth 
station licensees for command of spacecraft that do not otherwise 
provide radiocommunication services. The secondary allocation proposal 
includes a requirement for applicants to seek authority from the 
Commission to operate an earth station in the 2320-2345 MHz band under 
secondary allocation, and to certify that their proposed operations 
have been coordinated with, and approved by, the exclusive licensee 
within this frequency band to safeguard the existing operations from 
interference. The NPRM seeks comment on the proposed certification 
requirement, and on whether there are additional non-Federally 
allocated spectrum bands such as the 2315-2320 MHz and 2345-2350 MHz 
bands, and the 2305-2315 MHz and 2350-2360 MHz bands, that could be 
used in support of emergent space operations.

B. Legal Basis

    101. The proposed action is authorized pursuant to sections 4(i), 
4(j), 7(a), 301, 303, 307, 308, 309, 310, 312, 316, and 332 of the 
Communications Act of 1934, as amended, U.S.C. 154(i), 154(j), 157(a), 
301, 303, 307, 308, 309, 310, 312, 316, and 332.

C. Description and Estimate of the Number of Small Entities to Which 
the Proposed Rules Will Apply

    102. The RFA directs agencies to provide a description of and, 
where feasible, an estimate of the number of small entities that may be 
affected by the proposed rules, if adopted. The RFA generally defines 
the term ``small entity'' as having the same meaning as the terms 
``small business,'' ``small organization,'' and ``small governmental 
jurisdiction.'' In addition, the term ``small business'' has the same 
meaning as the term ``small business concern'' under the SBA. A ``small 
business concern'' is one in which: (1) is independently owned and 
operated; (2) is not dominant in its field of operation; and (3) 
satisfies any additional criteria established by the SBA. The SBA 
establishes small business size standards that agencies are required to 
use when promulgating regulations relating to small businesses; 
agencies may establish alternative size standards for use in such 
programs, but must consult and obtain approval from SBA before doing 
so.
    103. Our actions, over time, may affect small entities that are not 
easily categorized at present. We therefore describe three broad groups 
of small entities that could be directly affected herein. In general, a 
small business is an independent business having fewer than 500 
employees. These types of small business represent 99.9% of all 
businesses in the United States, which translates to 34.75 million 
businesses. Next, ``small organizations'' are not-for-profit 
enterprises that are independently

[[Page 17930]]

owned and operated and not dominant in their field. While we do not 
have data regarding the number of non-profits that meet that criteria, 
over 99 percent of nonprofits have fewer than 500 employees. Finally, 
``small governmental jurisdictions'' are defined as cities, counties, 
towns, townships, villages, school districts, or special districts with 
populations of less than fifty thousand. Based on the 2022 U.S. Census 
of Governments data, we estimate that at least 48,724 out of 90,835 
local government jurisdictions have a population of less than 50,000.
    104. The rules proposed in the NPRM will apply to small entities in 
the industries identified in the chart below by their six-digit North 
American Industry Classification System (NAICS) codes and corresponding 
SBA size standard. Based on currently available U.S. Census data 
regarding the estimated number of small firms in each identified 
industry, we conclude that the proposed rules will impact a substantial 
number of small entities. Where available, we also provide additional 
information regarding the number of potentially affected entities in 
the industries identified below.

----------------------------------------------------------------------------------------------------------------
                                                                               Total     Small    % Small firms
       Regulated industry               NAICS code        SBA size standard    firms     firms     in industry
----------------------------------------------------------------------------------------------------------------
Wired Telecommunications          517111...............  1,500 employees...     3,403     3.027            88.95
 Carriers.
Satellite Telecommunications....  517410...............  $44 million.......       332       195            88.69
All Other Telecommunications....  517810...............  $40 million.......     1,673     1,007            60.19
----------------------------------------------------------------------------------------------------------------

D. Discussion of Significant Alternatives Considered That Minimize the 
Significant Economic Impact on Small Entities

    105. The RFA directs agencies to describe the economic impact of 
proposed rules on small entities, as well as projected reporting, 
recordkeeping and other compliance requirements, including an estimate 
of the classes of small entities which will be subject to the 
requirements and the type of professional skills necessary for 
preparation of the report or record.
    106. In the NPRM, we seek to make additional spectrum available for 
certain types of spacecraft and satellite operators, and do not propose 
to change the way the space station licensing process works. By 
clarifying the use of existing allocations and permitting TT&C on a 
non-interference basis as proposed in the NPRM, we may reduce the time 
and expense for small and other entities associated with acquiring 
spectrum access. Further, these clarifications and the codification of 
practices such as frequency piggybacking and spectrum leasing should 
lower barriers to entry, eliminate the need for small entities to file 
requests for waiver of the United States Table (47 CFR 2.106) to access 
certain spectrum, and allow small entities to avoid lengthy 
coordination with Federal users making the application process easier 
and avoid some legal and administrative costs. We estimate a total cost 
savings of approximately $6.8 million annually from the proposals 
discussed in the NPRM.
    107. Notwithstanding the benefits of streamlined access to 
spectrum, small and other entities would be subject to complying with 
certification and coordination requirements to lease spectrum from 
incumbent licensees, and are likely to incur new costs in the form of 
lease payments to incumbent licensees. Small and other entities seeking 
to lease spectrum would also be required to obtain their own earth 
station license from the Commission, and would be subject to the 
applicable reporting, recordkeeping, and compliance obligations for 
licensees. Additionally, while the proposals in the NPRM will reduce 
regulatory complexities, burdens and costs, small entities may incur 
compliance costs and may need to engage the assistance of professionals 
such as engineers, lawyers or consultants to meet their obligation to 
demonstrate technical compliance with spectrum use parameters, 
negotiate leasing agreements and certify coordination with incumbent 
licensees, and to assist with filings involving coordination with 
Federal users or international obligations.
    108. If the proposals in the NPRM are adopted, we expect the 
overall burden for small and other entities to be less than under our 
current requirements. Adding a secondary allocation for SOS in the 
2320-2345 MHz band has the potential to eliminate costly coordination 
with the National Telecommunications and Information Administration 
(NTIA) to use Federal bands for TT&C by giving small and other entities 
a non-Federal alternative. Further, while leasing 2320-2345 MHz band 
spectrum may require small and other entities to negotiate with, and 
make lease payments to, the exclusive licensee in the band, SiriusXM, 
we anticipate that these costs would be significantly lower than those 
associated with any individual NTIA coordination effort, since leasing 
spectrum will eliminate the need for engineering coordination. We 
estimate the annual regulatory cost savings from the elimination of 
NTIA coordination will be $8.2 million. By eliminating NTIA 
coordination, we estimate that small and other entities will each save 
$128,473.60 in legal and engineering compensation costs. Our estimate 
assumes an operator's NTIA coordination process uses two lawyers and 
two engineers working through the application process over a two months 
period--eight forty-hour workweeks or three hundred and twenty work 
hours for each worker, with an hourly compensation rate of $106.10/hour 
for the lawyers, and $94.64 for the engineers. The total calculated 
compensation for an operator's NTIA coordination is therefore 
$128,473.60. Additional cost savings may be realized by small and other 
operators by establishing long-term contracts reducing the need for 
ongoing negotiations during the contract period. In contrast, frequency 
coordination with NTIA for each specific use case is required under the 
current process.

E. Discussion of Significant Alternatives Considered That Minimize the 
Significant Economic Impact on Small Entities

    109. The RFA directs agencies to provide a description of any 
significant alternatives to the proposed rules that would accomplish 
the stated objectives of applicable statutes, and minimize any 
significant impact on small entities. The discussion is required to 
include alternatives such as: ``(1) the establishment of differing 
compliance or reporting requirements or timetables that take into 
account the resources available to small entities; (2) the 
clarification, consolidation, or simplification of compliance and 
reporting requirements under the rule for such small entities; (3) the 
use of performance rather than design standards; and (4) an exemption 
from coverage of the rule, or any part thereof, for such small 
entities.''
    110. The NPRM proposes ways to identify more spectrum for 
spacecraft

[[Page 17931]]

that conduct emergent space operations and to make it easier for 
operators of these spacecraft to apply for and use spectrum. We 
consider some alternatives that would minimize the economic impact on 
small entities while achieving our goal of expanding spectrum 
availability for space operations in an evolving space industry and 
economy. These alternatives would balance regulatory certainty with 
flexibility, and could enable small entities to access spectrum more 
efficiently and affordably.
    111. We generally propose to continue reviewing requests to operate 
space stations within specific service allocations on a case-by-case 
basis to assess whether the proposed communications can justifiably fit 
within the definition of the service allocation; however, we consider 
and seek comment on allowing TT&C operations within existing service 
allocations, provided the operations fit within the service allocation 
definition. Another option upon which we seek comment is allowing 
licensees and market access grantees to conduct TT&C in any band where 
TT&C may already be provided within the radiocommunication service. 
Allowing such flexible use of existing allocations would avoid the need 
for new rulemakings to create new allocations or conduct spectrum 
reallocation. We also consider and seek comments on whether to grant 
applicants authority to provide fixed-satellite service (FSS) in bands 
allocated for non-Federal FSS, limited to the provision of TT&C on an 
unprotected, non-interference basis, subject to coordination with other 
spectrum users, outside of a first-come, first service procedure or a 
processing round.
    112. While our proposed allowance of spectrum leasing in the 2320-
2345 MHz band discussed in the NPRM would have certification and 
coordination requirements for lessees, we consider and propose allowing 
space station authorization in the 2320-2345 MHz band with a 
certification and coordination requirement in the limited circumstance 
of reception of commands from earth stations licensed by the 
Commission, or from earth stations located outside of the United 
States. We also consider and seek comment on allowing earth stations to 
provide command uplinks to non-communications satellites and spacecraft 
in the 2320-2345 MHz band within a defined geographic area, such as an 
area of northern Alaska defined by latitude, without requiring 
coordination and approval. These approaches offer regulatory 
flexibility and would minimize the need for complex coordination which 
could lower compliance costs for small and other entities.
    113. Our proposal for spectrum leasing would still require small 
and other entities that want to use the 2320-2345 MHz band to provide 
command uplinks to obtain an earth station license from the Commission 
prior to transmitting in the band, and lessees would be subject to all 
licensing and regulatory obligations applicable to earth station 
licensees. As an alternative, we seek comment on whether to adopt the 
more extensive requirements for approving long and short term de facto 
transfers of control of spectrum under the Commission's spectrum 
leasing rules applicable to Wireless Radio Services and other wireless 
licensees. Adoption of this approach presumes no additional license 
authorization is required from the Commission to allow the operations 
using leased spectrum.
    114. Other alternatives we consider and seek comment on in the NPRM 
include whether a non-governmental (NG) footnote to the United States 
Table is a better method than our proposed secondary allocation 
allowance to permit use of the 2320-2345 MHz band for command uplinks 
to non-communications satellites, and whether competitive bidding or 
alternative market-based approaches can be employed to promote the 
efficient and timely use of the 2320-2345 MHz band for command uplinks, 
consistent with statutory limitations. We specifically inquire whether 
earth station licenses to operate in the U.S. using the 2320-2345 MHz 
band--spectrum that is not internationally allocated for satellite 
communications--could be auctioned by the Commission. If we decide to 
use an auction process, as in prior auctions, small entity bidding 
credits could be made available to promote competitive entry for small 
entities.
    115. To assist with our evaluation of the economic impact on small 
entities that may result from the proposals and matters upon which we 
seek comment in this proceeding, the NPRM seeks alternative proposals, 
and requests information from small and other licensees. We expect to 
consider more fully the economic impact on small entities following its 
review of comments filed in response to the NPRM, including any costs 
and benefits information. Alternative proposals and approaches from 
commenters may help the Commission further minimize the economic impact 
on small entities. Our evaluation of the comments filed in this 
proceeding will shape the final conclusions we reach, the final 
alternatives we consider, and the actions we ultimately take in this 
proceeding to minimize any significant economic impact that may occur 
on small entities from the final rules that are ultimately adopted.
    116. The NPRM seeks comment from all interested parties. Small 
entities are encouraged to bring to our attention any specific concerns 
that they may have with the proposals outlined in the NPRM.

F. Federal Rules That May Duplicate, Overlap, or Conflict With the 
Proposed Rules

    117. None.

Ordering Clauses

    118. It is ordered, pursuant to sections 4(i), 4(j), 7(a), 301, 
303, 307, 308, 309, 310, 312, 316, 332 of the Communications Act of 
1934, as amended, 47 U.S.C. 154(i), 154(j), 157(a), 301, 303, 307, 308, 
309, 310, 312, 316, 332, that the NPRM is adopted.
    119. It is further ordered that the Commission's Office of the 
Secretary shall send a copy of the NPRM, including the IRFA, to the 
Chief Counsel for the SBA Office of Advocacy.

Federal Communications Commission.
Marlene Dortch,
Secretary.
[FR Doc. 2026-06865 Filed 4-8-26; 8:45 am]
BILLING CODE 6712-01-P


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