Modernizing Spectrum Sharing for Satellite Broadband

Document Headings Document headings vary by document type but may contain the following: the agency or agencies that issued and signed a document the number of the CFR title and the number of each part the document amends, proposes to amend, or is directly related to the agency docket number / agency internal file number the RIN which identifies each regulatory action listed in the Unified Agenda of Federal Regulatory and Deregulatory Actions See the Document Drafting Handbook for more details. Federal Communications Commission 47 CFR Part 25 [SB Docket No. 25-157; FCC 25-23; FR ID 294294] AGENCY: Federal Communications Commission. ACTION: Proposed rule. SUMMARY: In this document, the Federal Communications Commission (Commission or we) seeks comment on modernizing spectrum sharing between geostationary (GSO) and non-geostationary (NGSO) satellite systems operating in the 10.7-12.7, 17.3-18.6, and 19.7-20.2 GHz frequency bands in which equivalent power-flux density (EPFD) limits apply. DATES: Comments are due July 28, 2025. Reply comments are due August 27, 2025. ADDRESSES: You may submit comments, identified by SB Docket No. 25-157, by any of the following methods: FCC website: https://apps.fcc.gov/​ecfs . Follow the instructions for submitting comments. People with Disabilities: Contact the FCC to request reasonable accommodations (accessible format documents, sign language interpreters, CART, etc.) by email: FCC504@fcc.gov or phone: 202-418-0530 or TTY: 202-418-0432. For detailed instructions for submitting comments and additional information on the rulemaking process, see the SUPPLEMENTARY INFORMATION section of this document. FOR FURTHER INFORMATION CONTACT: Clay DeCell, 202-418-0803, Clay.DeCell@fcc.gov . SUPPLEMENTARY INFORMATION: This is a summary of the Commission's Notice of Proposed Rulemaking (NPRM), FCC 25-23, adopted April 28, 2025, and released April 29, 2025. The full text is available online at https://docs.fcc.gov/​public/​attachm…