FCC Satellite Licensing: From Application to Authorization

In 2025, the FCC’s Space Bureau processed more than 3,400 satellite applications - a 21% increase over the prior year. Every one of them went through the Part 25 framework, the regulatory structure that has governed non-federal satellite communications for decades. Whether you are filing for a single technology demonstration satellite or a mega-constellation of thousands, Part 25 is the gate. No authorization means no legal right to transmit - no uplink, no downlink, no telemetry, no command. This guide covers how the process works, what it costs, and where it’s headed.

For context on how FCC licensing fits within the broader multi-agency regulatory landscape, see our Operator’s Playbook.

The Part 25 Framework

47 CFR Part 25 governs satellite communications for non-federal systems. It covers two categories of authorization: space stations (the FCC’s term for any satellite - not a crewed orbital facility) and earth stations (the ground terminals that communicate with them). Every commercial satellite operator transmitting to or from the United States needs one or both.

Part 25 offers two licensing tracks.

Full Part 25 (Section 25.114) is the standard pathway for all geostationary (GSO) and non-geostationary (NGSO) space station applications. Operators file FCC Form 312, Schedule S, and a package of technical exhibits detailing the system’s orbital parameters, frequency plan, interference environment, and debris mitigation approach. This track handles everything from single-satellite missions to mega-constellations.

Streamlined small satellite (Sections 25.122 and 25.123) is a simplified pathway adopted in August 2019 (FCC 19-81) for qualifying systems. To use the Section 25.122 small satellite track, a satellite must have a mass of 180 kg or less including propellant, a planned mission lifetime of six years or less, and either operate below 600 km or carry a propulsion system. Section 25.123 offers a parallel track for small spacecraft of up to 500 kg. The application is shorter, fees are reduced, and the system is exempt from processing rounds. The streamlined track was designed to lower the barrier for university missions, technology demonstrations, and early-stage commercial programs.

Part 25 also governs earth station authorizations. Most satellite operators need both a space station license and one or more earth station authorizations for the ground terminals that communicate with their satellites. Earth station licensing has its own filing types (SES-prefixed), fee schedules, and technical requirements - particularly around frequency coordination with terrestrial systems. For a detailed walkthrough, see our FCC earth station licensing requirements (Part 25 subparts B and C).

One important note on terminology: the FCC refers to every satellite as a space station and every ground terminal as an earth station. This language appears throughout Part 25, in filing designations, and in all FCC orders. It’s not intuitive, but it’s consistent.

The Space Modernization Report and Order (FCC 26-47), adopted in July 2026, eliminates the streamlined small satellite track (sections 25.122 and 25.123) under the new Part 100. Until Part 100 takes effect, both tracks remain available. See what Part 100 changes.

The Application Process Step by Step

Filing an FCC satellite application is a structured process with defined stages.

Pre-Filing

Before anything else, the applicant needs an FCC Registration Number (FRN) from the FCC’s Registration System and an account in the International Communications Filing System (ICFS, formerly IBFS). These are administrative prerequisites, but they take time - particularly for first-time filers or foreign entities establishing a U.S. presence.

Filing

The core submission consists of three components. Form 312 identifies the applicant: corporate structure, ownership, contact information, and the nature of the requested authorization. Schedule S describes the satellite system: orbital parameters, frequency assignments, polarization, modulation, power levels, coverage areas, and constellation architecture for multi-satellite systems. Together, these two forms establish who is asking and what they want to build.

The technical exhibits are where the engineering lives. Under Section 25.114(d), a standard space station application must include:

• Interference analysis - demonstrating compatibility with existing and proposed systems in the same frequency bands
• Orbital debris mitigation plan - detailing end-of-life disposal, collision avoidance capability, and debris generation risk (see our 5-Year Deorbit Rule explainer for the current disposal requirement)
• Spectrum sharing analysis - for bands shared with terrestrial or other satellite services
• Antenna characteristics - gain patterns, sidelobe levels, and pointing accuracy
• Coverage area - geographic service footprint
• Power levels - EIRP (Equivalent Isotropically Radiated Power) per carrier and aggregate
• Polarization plan - for frequency reuse and interference management

Acceptance for Filing

Once submitted, FCC staff review the application for completeness. Part 25 sets no binding deadline for this step: the FCC’s August 2025 order (FCC 25-48) declined to adopt broad shot clocks for GSO or NGSO applications, though Part 100 will add a 30-day completeness determination once it takes effect. If the application passes this initial screen, the FCC issues a public notice accepting it for filing.

Comment Period

A 30-day public comment window opens after acceptance. Other operators, government agencies, and interested parties can file comments - typically raising interference concerns or challenging technical assumptions.

Technical Review

Space Bureau staff evaluate the application against Part 25’s technical rules, assess the interference analysis, and review any coordination requirements with other systems.

Grant with Conditions

If the application meets all requirements, the FCC issues a space station authorization - typically with conditions attached. We cover those conditions below.

Common Application Deficiencies

FCC staff return or defer applications for a consistent set of reasons. The most frequent: incomplete interference analysis. Part 25 requires operators to demonstrate compatibility with every existing and proposed system in the same frequency band. Submissions that address only co-frequency GSO systems while ignoring NGSO neighbors, or that use generic link budgets instead of system-specific modeling, get sent back.

Missing or incomplete Schedule S exhibits are the second most common deficiency. Schedule S requires precise orbital parameters, frequency assignments, and antenna characteristics for every satellite variant in the proposed system. For constellation operators, that means complete data for each orbital shell and beam configuration.

Orbital debris mitigation plans that don’t address the five-year disposal requirement or lack specificity on collision avoidance procedures are another frequent issue. The FCC expects quantitative analysis, not general assertions about deorbit capability. Finally, applications involving internationally coordinated spectrum must include documentation of ITU coordination status. Filing without it delays acceptance and signals to the Space Bureau that the operator hasn’t started the international process.

Processing Rounds: How NGSO Priority Works

Spectrum is finite. When multiple NGSO systems want to operate in the same frequency band, the FCC uses processing rounds to determine who gets priority.

The mechanism works like this: one or more lead applications trigger a processing round. The FCC issues a public notice establishing a cut-off date. Any NGSO application filed before the cut-off competes within the same round. Systems granted within the same round receive equal spectrum priority - no operator has the right to demand that another modify its system to avoid interference.

Priority between rounds is based on the processing round, not the individual grant date. A system authorized in an earlier round has priority over systems from later rounds. This creates an incentive to file early and avoid delays, because falling into a later round means subordinate spectrum rights.

The current system is discretionary - the FCC opens processing rounds as it sees fit. There is no fixed schedule. Under Part 100, adopted in July 2026 but not yet effective, frequency-specific processing rounds open automatically every year with a filing window from January 1 through October 31, and participation is opt-in.

Processing rounds also carry a 10-year sunset on spectrum priority. Under 47 CFR 25.261(e), ten years after the first authorization or grant of market access in a processing round, systems from that round no longer have to protect earlier-round systems and instead share spectrum with them on equal terms. The sunset is purely time-based, so spectrum priority doesn’t persist indefinitely.

Milestones and Bonds

An FCC satellite license is not indefinite permission. It comes with deployment milestones and financial guarantees designed to prevent spectrum warehousing - operators who secure licenses but never build.

GSO milestones require the operator to launch, position, and begin operating the satellite within five years of the grant date.

NGSO milestones are more demanding. The operator must deploy and operate 50% of the authorized constellation within six years of the grant and 100% within nine years. Miss a milestone and, under Section 25.161, authority for the satellites not yet in orbit terminates automatically unless the FCC grants an extension or waiver.

Surety bonds back the milestones with money. Under Section 25.165, most space station licensees must post a surety bond within 30 days of the grant (small satellite licensees under Sections 25.122/25.123 have one year plus 30 days; SDARS and replacement satellites are exempt). The bond amount grows with the time elapsed since grant:

• NGSO: A = $1,000,000 + $4,000,000 x D/2,192 (where D is the days from grant until the license is surrendered, capped at 2,192)
• GSO: A = $1,000,000 + $2,000,000 x D/1,827 (D capped at 1,827)

The bond is forfeited if the operator fails to meet milestones. The maximum exposure is $5,000,000 for an NGSO system and $3,000,000 for a GSO satellite - meaningful enough to deter speculative filings, though the amount has drawn criticism as too low to constrain well-funded operators.

The milestone framework is where regulatory ambition meets operational reality. Amazon’s Kuiper constellation (now Amazon Leo) was licensed in July 2020 for 3,236 satellites, later modified to 3,232, with a 50% milestone of 1,616 satellites due July 30, 2026. Amazon reported 180 satellites launched when it filed for an extension in January 2026. In June 2026 the Space Bureau granted a limited waiver with conditions (DA 26-553): authority for undeployed satellites survives the interim milestone and the July 30, 2029 final milestone stands, but satellites deployed after July 30, 2026 temporarily lose processing-round priority, and the bond is forfeited if the 50% milestone is missed. The precedent: the FCC will bend milestone enforcement at constellation scale, but at a price.

License Terms and Renewal

A standard FCC space station license runs for 15 years for both GSO and NGSO systems, but the term does not start at grant: under Section 25.121(d) it begins when the licensee notifies the FCC that the satellite (for NGSO, the first satellite) is in its authorized orbit and operating in line with the license. Streamlined small satellite licenses run six years with no extension. GSO licensees can seek term extensions in increments of five years or less through a modification application (Section 25.121(f)), and NGSO operators apply for replacement authorization no earlier than 12 months and no later than 30 days before expiration (Section 25.121(e)), both through ICFS. Neither is automatic - the FCC evaluates whether the system continues to serve the public interest and whether the operator has complied with license conditions.

Part 100 sets a default 20-year term from grant for most systems once it takes effect. Existing licenses keep their original terms unless the licensee petitions within one year of the Part 100 Effective Date to align with a 20-year term. Until then, the 15-year term remains in effect. Operators planning missions with intended lifetimes beyond 15 years should factor renewal timing into their program schedules.

Filing Types and How to Track Them

The FCC uses a taxonomy of filing designations to categorize satellite applications. Understanding these is essential for tracking competitors, monitoring spectrum neighbors, or conducting due diligence.

Filing Type	Purpose
SAT-LOA	License application - the initial authorization request
SAT-MOD	Modification - changes to an existing license (orbit, frequencies, constellation size)
SAT-STA	Special Temporary Authority - up to 180 days for interim operations if placed on public notice (60 or 30 days otherwise)
SAT-AMD	Amendment - changes to a pending application before grant
SAT-T/C	Transfer of control - change in ownership or controlling interest
SAT-RPL	Replacement - authorization for a replacement satellite under existing license terms
SAT-LOI	Letter of Intent - petition for declaratory ruling seeking U.S. market access for a non-U.S.-licensed system, including in NGSO processing rounds
SAT-PPL	Petition for Declaratory Ruling - adds a non-U.S.-licensed satellite to the Permitted Space Station List

All filings route through ICFS, the system formerly called IBFS. The primary lookup keys are the operator’s FRN (FCC Registration Number) and the satellite’s callsign. The Electronic Comment Filing System (ECFS) is a separate database used for rulemaking comments - different system, different purpose.

Orbit Sentinel tracks 13,730 SAT-prefixed filings from at least 386 distinct entities across the FCC’s satellite licensing database. The scale underscores a practical problem: ICFS (formerly IBFS) is an aging system with no public API, inconsistent entity naming, and limited search functionality. Tracking a single operator’s filing history often requires cross-referencing multiple FRNs, callsigns, and corporate names.

Special Temporary Authority

Not every operation needs a full license. Special Temporary Authority (STA) provides authorization of up to 180 days (when the request is placed on public notice; 60 or 30 days otherwise) for operations that fall outside the scope of an existing license - or before a license has been granted.

The most common STA scenario is pre-launch testing of ground equipment on frequencies not yet authorized. Operators also use STAs for emergency operations that require spectrum outside their current grant, or for interim service while a license modification works through review. Some STAs cover operations at orbital positions the existing license doesn’t include.

STAs are filed through ICFS as SAT-STA applications. They can be renewed, and the FCC routinely grants extensions when the underlying license application is still being processed. For operators in the early stages of deployment, STAs allow transmissions to begin months before a permanent license is issued - bridging the gap between hardware readiness and final FCC action.

Grant Conditions

An FCC satellite authorization rarely arrives clean. The AST SpaceMobile grant, for example, came with conditions on NTIA coordination, NSF/NASA coordination, and a full prohibition on 2200-2290 MHz operations with U.S. earth stations. That level of specificity is typical: the FCC tailors conditions to the system’s spectrum environment and interference profile.

NTIA Coordination

For spectrum bands shared with federal users - common in S-band, L-band, and portions of X-band - the FCC conditions the license on successful coordination with the National Telecommunications and Information Administration. The FCC grants the license; NTIA ensures the Department of Defense, NASA, and other federal agencies aren’t disrupted.

ITU Coordination Progress

The FCC expects operators to pursue international spectrum coordination through the ITU and may condition the license on demonstrated progress. A domestic authorization without international coordination means domestic spectrum rights but no protection from foreign systems.

Orbital Debris Mitigation

Every grant incorporates the operator’s debris mitigation commitments - including the five-year disposal requirement for LEO satellites launched after September 29, 2024.

Cross-Border Power Flux Density Limits

To protect systems in other countries, the FCC may impose limits on the signal power reaching the Earth’s surface at national borders.

Interference Protection Commitments

Conditions specifying how the operator will protect existing systems, particularly when operating in bands with incumbent users.

The AST SpaceMobile authorization (DA 24-756, August 2024) illustrates how conditions can be layered. The Space Bureau required NTIA coordination before AST submits any ITU filing for non-U.S. ground stations in 2200-2290 MHz, coordination with NSF and NASA, and a prohibition on 2200-2290 MHz operations with U.S. earth stations. The conditions reflected TT&C use of S-band spectrum shared with federal systems and passive science services. For the multi-agency coordination angle, see our coverage of inter-agency dynamics.

Market Access

Not every satellite serving U.S. customers needs a U.S. license. Market access allows foreign-licensed operators to provide service in the United States without obtaining a full Part 25 authorization.

The pathway is a Petition for Declaratory Ruling, filed in ICFS as a SAT-LOI (or, to join the Permitted Space Station List, as a SAT-PPL). The operator demonstrates that its home country’s licensing regime provides comparable regulatory oversight, that the system meets FCC technical requirements, and that granting access serves the public interest. The requirements differ from domestic licensing: the operator doesn’t receive a Part 25 license, but rather a declaratory ruling permitting U.S. market access.

Orbit Sentinel’s analysis of FCC filings shows 112 SAT-PPL Permitted List petitions filed between 2003 and 2025, from operators including SpaceX (for non-U.S.-licensed systems), Telesat, Eutelsat, SES, and Intelsat. More broadly, over 3,100 filings from major non-U.S. satellite operators - SES, Inmarsat, Telesat, Eutelsat, OneWeb, ICEYE, Satellogic - span license applications, STAs, modifications, and transfers across ICFS.

The FCC opened a comment period in March 2026 on international satellite market access and reciprocity, signaling potential changes to how foreign operators access U.S. spectrum. Operators with international operations should monitor this proceeding.

Case Studies

Starlink: Even the Most Resourced Operator Gets Partial Grants

SpaceX’s Starlink Gen1 constellation was authorized for 4,425 satellites. When SpaceX filed for Gen2 - proposing 29,988 additional satellites - the FCC didn’t simply approve. In December 2022, FCC 22-91 granted an initial tranche of 7,500 satellites out of the requested 29,988, deferring the remainder pending further review. Even with SpaceX’s institutional knowledge of the FCC process and demonstrated operational track record, the agency applied a phased approach to the largest constellation ever proposed.

Kuiper: Milestone Pressure at Scale

Amazon’s Kuiper constellation (now Amazon Leo) was licensed in July 2020 for 3,236 satellites, later reduced to 3,232. The 50% deployment milestone - 1,616 satellites - came due July 30, 2026. With 180 satellites launched at the time of filing, Amazon sought a milestone extension in January 2026. The Space Bureau’s June 2026 answer (DA 26-553) was a limited waiver with conditions rather than an extension: undeployed satellites keep their authority, satellites deployed after July 30, 2026 temporarily lose processing-round priority, the bond is forfeited if the 50% milestone is missed, and the 100% milestone of July 30, 2029 stays in place. Milestone enforcement proved flexible for a well-capitalized operator making demonstrable progress, but not free.

OneWeb: FCC Authorizations Can Survive Bankruptcy

OneWeb received U.S. market access in 2017 (FCC 17-77, a declaratory ruling on a UK-licensed system, filed as SAT-LOI), filed for bankruptcy in March 2020, and was acquired out of bankruptcy in 2020 by a consortium led by the UK government and Bharti Global. The market access grant carried over to the new owners only because the FCC consented to the transfer of control. That is the real lesson: under 47 U.S.C. 301 and 304, an FCC authorization confers no ownership of spectrum, and Section 310(d) bars transfer without FCC approval. For investors and lenders, the authorization has value in a restructuring, but it moves only with the FCC’s consent.

AST SpaceMobile: First-of-Its-Kind Conditions

AST SpaceMobile’s authorization (DA 24-756, August 2, 2024) pushed the boundaries of Part 25 conditioning. The Space Bureau granted five BlueBird satellites for V-band feeder links and TT&C, and deferred the direct-to-device (Supplemental Coverage from Space) frequencies and the remaining satellites. The TT&C grant uses S-band spectrum shared with federal systems and passive science services, so the Bureau attached conditions requiring NTIA coordination before ITU filings for non-U.S. ground stations in 2200-2290 MHz, coordination with NSF and NASA, and a prohibition on operations in the 2200-2290 MHz band with U.S. earth stations. The case demonstrates that Part 25 authorization can come with conditions that materially shape the system’s operating parameters and deployment timeline.

Filing Fees

FCC satellite application fees vary by filing type. The current schedule in 47 CFR 1.1107 (Table 9) sets:

• GSO space station: $4,175 per satellite
• NGSO space station: $17,670 per system of technically identical satellites, per call sign
• Small satellite or small spacecraft (Sections 25.122/25.123): $2,555 per call sign
• Modification of a space station license: $2,930 per call sign
• Special temporary authority: $1,685 per call sign

Fees are paid through the FCC’s Commission Registration System (CORES) at the time of filing. The FCC publishes an updated fee guide annually - operators should consult the current schedule before filing, since application fees are revised periodically.

Part 100: Adopted, Not Yet Effective

The FCC adopted the Space Modernization Report and Order (FCC 26-47, SB Docket No. 25-306) on July 22, 2026, replacing Part 25 with a new Part 100. It followed the Space Modernization NPRM (FCC-25-69), adopted October 28, 2025, which drew comments from across the industry, including SpaceX, Amazon, SES, Eutelsat, Blue Origin, AST SpaceMobile, Capella Space, and Planet Labs.

The adopted rules include:

• A licensing assembly line, under which compliant applications are presumed to serve the public interest and staff review focuses on targeted categories
• A Variable Trajectory Space Station (VTSS) System category for spacecraft beyond geosynchronous orbit or without fixed orbital patterns, such as servicing vehicles and lunar missions
• Annual, opt-in processing rounds in named bands (initially Ka, Ku, Q, and V), with a January 1 to October 31 filing window
• 20-year default license terms for space stations, earth stations, and market access grants
• A Nationwide, Non-Site earth station license with site registration
• Declining surety bonds that apply only to processing-round NGSO and MOSS systems
• Elimination of the 25.122/25.123 small satellite track

Part 100 is not in force yet. It takes effect after Paperwork Reduction Act review, on a date the Space Bureau will announce by public notice, and Part 25 remains in effect until then. Applications decided before that date are reviewed under Part 25.

What operators should do now: file under Part 25, and prepare for the transition. Our breakdown of what Part 100 changes for satellite operators covers the transition rules for existing licenses, bonds, and pending applications.

The Bottom Line

Part 25 is the foundation the rest of the regulatory stack builds on. FAA launch authorization, NOAA remote sensing licenses, ITU spectrum coordination - none of them matter if the FCC hasn’t granted the right to transmit. That makes the satellite licensing process the load-bearing structure of any U.S. space venture: get it wrong and everything downstream shifts.

The system is changing. Part 100, adopted in July 2026, restructures how applications are filed, how processing rounds run, and how long licenses last. Operators filing today are building under Part 25 while waiting for the Part 100 Effective Date. The pragmatic move: file under Part 25 now, track SB Docket No. 25-306 for the Effective Date notice, and plan your license term and bond decisions before the switch.

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Further reading:

• For the full multi-agency regulatory landscape, read U.S. Space Regulatory Compliance: The Operator’s Playbook.
• For the FCC’s orbital debris disposal requirement, read FCC orbital debris compliance deadline for LEO satellites.
• For the FAA’s parallel licensing framework for launch and reentry, read FAA Part 450: The New Era of Launch and Reentry Licensing.
• For the multi-agency coordination angle on systems like AST SpaceMobile, read Multi-Agency Coordination.
• For a beginner-friendly overview, read How Satellite Licensing Works: A Complete Guide.
• For export-control obligations that run in parallel with FCC licensing, read ITAR compliance for satellite operators in 2026.
• For how the data layer behind regulatory intelligence is built, read trustworthy AI for regulatory intelligence.
• For how regulatory intelligence platforms track filings at scale across all four agencies, see the category overview.
• For deeper definitions of the regulatory terms referenced here, explore our Space Regulatory Glossary.

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Key Regulatory References

• 47 CFR Part 25 - Satellite Communications (current text)
• 47 CFR §25.114 - Space Station Applications
• 47 CFR §25.122/25.123 - Small Satellite Applications
• 47 CFR §25.164 - Milestones
• 47 CFR §25.165 - Surety Bonds
• 47 CFR §25.283 - Orbital Debris Mitigation
• FCC 26-47, Space Modernization Report and Order and FNPRM, SB Docket No. 25-306 (July 2026)
• FCC-25-69, Space Modernization NPRM, SB Docket No. 25-306 (October 2025)
• FCC 22-91, Starlink Gen2 Partial Grant (December 2022)
• DA 24-756, AST&Science Order and Authorization (August 2024)
• DA 26-553, Kuiper Systems Milestone Waiver Order (June 2026)