U.S. Code of Federal Regulations

Regulations most recently checked for updates: Oct 30, 2025

All TitlesTitle 47Chapter IPart 25Subpart B - Subpart B—Applications and Licenses

GENERAL APPLICATION FILING REQUIREMENTS
§ 25.110 - Filing of applications, fees, and number of copies.
§ 25.111 - Additional information, ITU filings, and ITU cost recovery.
§ 25.112 - Dismissal and return of applications.
§ 25.113 - Station construction, deployment approval, and operation of spare satellites.
§ 25.114 - Applications for space station authorizations.
§ 25.115 - Applications for earth station authorizations.
§ 25.116 - Amendments to applications.
§ 25.117 - Modification of station license.
§ 25.118 - Modifications not requiring prior authorization.
§ 25.119 - Assignment or transfer of control of station authorization.
§ 25.120 - Application for special temporary authorization.
§ 25.121 - License term and renewals.
§ 25.122 - Applications for streamlined small space station authorization.
§ 25.123 - Applications for streamlined small spacecraft authorization.
§ 25.124 - Unified space station and earth station authorization.
§ 25.125 - Applications for supplemental coverage from space (SCS).
§ 25.129 - Equipment authorization for portable earth-station transceivers.

EARTH STATIONS
§§ 25.130-25.131 - §[Reserved]
§ 25.132 - Verification of earth station antenna performance.
§ 25.133 - Period of construction; certification of commencement of operation.
§ 25.134 - [Reserved]
§ 25.135 - Licensing provisions for earth station networks in the non-voice, non-geostationary Mobile-Satellite Service.
§ 25.136 - Earth Stations in the 24.75-25.25 GHz, 27.5-28.35 GHz, 37.5-40 GHz, 47.2-48.2, GHz and 50.4-51.4 GHz bands.
§ 25.137 - Requests for U.S. market access through non-U.S.-licensed space stations.
§ 25.138 - Earth Stations in the 3.7-4.2 GHz band.
§ 25.139 - NGSO FSS coordination and information sharing between MVDDS licensees in the 12.2 GHz to 12.7 GHz band.

SPACE STATIONS
§ 25.140 - Further requirements for license applications for GSO space station operation in the FSS and the 17/24 GHz BSS.
§ 25.142 - Licensing provisions for the non-voice, non-geostationary Mobile-Satellite Service.
§ 25.143 - Licensing provisions for the 1.6/2.4 GHz Mobile-Satellite Service and 2 GHz Mobile-Satellite Service.
§ 25.144 - Licensing provisions for the 2.3 GHz satellite digital audio radio service.
§ 25.146 - Licensing and operating provisions for NGSO FSS space stations.
§ 25.147 - Space Stations in the 3.7-4.2 GHz band.
§ 25.148 - Licensing provisions for the Direct Broadcast Satellite Service.
§ 25.149 - Application requirements for ancillary terrestrial components in Mobile-Satellite Service networks operating in the 1.5./1.6 GHz and 1.6/2.4 GHz Mobile-Satellite Service.

PROCESSING OF APPLICATIONS
§ 25.150 - Receipt of applications.
§ 25.151 - Public notice.
§ 25.152 - [Reserved]
§ 25.153 - Repetitious applications.
§ 25.154 - Opposition to applications and other pleadings.
§ 25.155 - Mutually exclusive applications.
§ 25.156 - Consideration of applications.
§ 25.157 - Consideration of applications for NGSO-like satellite operation.
§ 25.158 - Consideration of applications for GSO-like satellite operation.
§ 25.159 - Limits on pending applications and unbuilt satellite systems.

FORFEITURE, TERMINATION, AND REINSTATEMENT OF STATION AUTHORIZATION
§ 25.160 - Administrative sanctions.
§ 25.161 - Automatic termination of station authorization.
§ 25.162 - Cause for termination of interference protection.
§ 25.163 - Reinstatement.
§ 25.164 - Milestones.
§ 25.165 - Surety bonds.

REPORTING REQUIREMENTS FOR SPACE STATION OPERATORS
§ 25.171 - Space station point of contact reporting requirements.
§ 25.172 - Requirements for reporting space station control arrangements.
§ 25.173 - Results of in-orbit testing.
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