Licensing toolkit

The licensing rules: applications and Schedule S (25.114), the frequency table (25.202), milestones and bonds (25.164, 25.165), orbital debris (25.114(d)(14), 25.283), NGSO sharing (25.261, 25.289), and the SCS rules. Current text on the eCFR.

The US allocation table and its footnotes, including the NG footnotes that the Spectrum Abundance proceeding changes. The FCC table as a PDF; the satellite bands are summarized on the Spectrum page.

Articles 9 and 11 (coordination and notification), 21 and 22 (power limits, including the EPFD limits still in force internationally), Appendix 4 data, and Resolution 35 (NGSO deployment milestones).

S.1323 and S.1503 for NGSO interference and EPFD evaluation, P.618 and P.838 for propagation, and SA.364 for near-Earth research satellite frequencies. SA.364-6 is the reference for research and small-satellite bands.

Spectrum Abundance (SB 25-180, FCC 25-29), GSO/NGSO sharing (SB 25-157, FCC 26-26), SCS (FCC 24-28), orbital debris (FCC 22-74), and the Starlink, Kuiper, and AST authorizations. The Spectrum Abundance item is the proceeding most likely to change a frequency plan this year.

The International Communications Filing System (formerly IBFS): Part 25 space station and earth station applications, Schedule S technical data, modifications, market access petitions, and the public record of every other operator's filings.

Rulemaking dockets, comments, ex parte filings, and orders. Where the sharing rules, the SCS framework, and the Spectrum Abundance proposals are argued and decided.

Capture and validation of API, coordination, and notification filings, and the biweekly circular where coordination requests, findings, and bring-into-use notices are published.

Checks an NGSO system against the Article 22 limits, which still govern internationally. Domestically the FCC replaced EPFD with performance-based criteria in April 2026 (FCC 26-26), so a US-licensed system now runs two analyses.

GSO and NGSO coexistence, aggregate interference, and coordination studies when the ITU tool is not enough.

Launch and reentry, and commercial remote sensing: the two approvals outside the FCC, tracked on the same calendar.

Access, coverage, link, lifetime, and conjunction analysis. The coverage and deorbit calculators on the Tools page are planning tools; the same analyses are run here with full atmosphere models and the actual constellation geometry.

The ODMSP compliance run behind the orbital debris mitigation showing: collision probability, disposal reliability, casualty risk on reentry.

Debris environment models for flux and impact risk over the mission life, used when the operator needs more than the DAS default environment.

Trajectory design and high-fidelity propagation for independent checks on vendor numbers. Free, scriptable, and auditable.

The catalog, element sets, and conjunction data messages. The live orbit map on this site runs on CelesTrak element sets.

Conjunction screening for operators. New operators register during launch preparation.

Every calculator on this site, every link budget, every capacity and interference model. Excel when the client needs to audit the model; Python for larger analyses and for reproducible exhibits.

Showings and comments in the same structure every time: assumptions, method, results, sensitivity, and the rule each result satisfies, so counsel can file them without rework.