# 2026-00588: FCC Tweaks Radio Quiet Zone Limits from Global Conference Deal 2026-00588, Implementation of the Final Acts of the World Radiocommunication Conference (Sharm el-Sheikh, 2019) (WRC-19), Revision to Table Mountain Radio Quiet Zone Field Strength Limits, is a Federal Register proposed rule from Federal Communications Commission published 2026-01-14, effective 2026-02-13 (as of 2026-06-11). - Canonical: https://policyrisk.com/federal-register/2026-00588 - As of: 2026-06-11 - Plain-text twin of the page above; the HTML and this file carry the same facts. ## Facts - Document number: 2026-00588 - Title: Implementation of the Final Acts of the World Radiocommunication Conference (Sharm el-Sheikh, 2019) (WRC-19), Revision to Table Mountain Radio Quiet Zone Field Strength Limits - Type: Proposed Rule - Agencies: Federal Communications Commission - Citation: 91 FR 1482 - Published: 2026-01-14 - Effective: 2026-02-13 - Comments close: not stated - Significant: no - Touches household money: no - Regulation identifier numbers: none - Last updated: 2026-06-11 ## In one line FCC Tweaks Radio Quiet Zone Limits from Global Conference Deal ## Summary The FCC wants to update radio rules to match international agreements made at the 2019 World Radiocommunication Conference. These changes affect how certain radio frequencies between 495 kHz and 50.9 GHz are used, including new limits in the Table Mountain Radio Quiet Zone. If you use these frequencies, get ready to comment by February 13, 2026, and expect smoother, more coordinated radio signals nationwide. ## Abstract In this document, the Federal Communications Commission (Commission or FCC) proposes to modify the Commission's rules to implement certain spectrum allocation decisions from the International Telecommunication Union's World Radiocommunication Conference's 2019 Final Acts concerning portions of the radio spectrum between 495 kHz and 50.9 GHz, make other allocation changes, and make related updates to our service rules in this frequency range. These proposals are designed to harmonize our spectrum allocations with and conform our rules to the World Radiocommunication's 2019 Final Acts to the extent that doing so would better meet domestic requirements. ## Effects PRIA read - Short‑Duration NGSO Access Below 1 GHz: benefit, medium. The FCC proposes to allow non‑geostationary satellites (NGSO) with short‑duration missions (limited to 3 years or less and no more than 10 satellites) to use portions of the 137–138 MHz and 148–149.9 MHz bands. The proposal includes power flux‑density limits (e.g., −140 dB(W/(m2·4 kHz)) in 137–138… - MSS Earth‑Station Power Limits (399.9–400.05 MHz): cost, medium. The FCC proposes adding footnotes that would limit emissions from mobile‑satellite service (MSS) earth stations in the 399.9–400.05 MHz band so that maximum EIRP does not exceed specified limits (for example, 5 dBW per 4 kHz and 5 dBW per 150 kHz). The proposal references dates in the WRC‑19 Final… - GMDSS Satellite Coverage Added (1621.35–1626.5 MHz): benefit, high. The FCC proposes adding a primary maritime mobile‑satellite (space‑to‑Earth) allocation in 1621.35–1626.5 MHz for Federal and non‑Federal shared use, subject to new international footnotes (5.208B, 5.370, 5.373, 5.373A). The change is meant to provide additional satellite coverage for the Global Ma… - Earth Stations In Motion (ESIM) Conditions Expanded: benefit, medium. The FCC proposes adding footnote 5.517A to allow Earth Stations in Motion (ESIMs) communicating with GSO FSS in the 17.7–19.7 GHz (space‑to‑Earth) and 27.5–29.5 GHz (Earth‑to‑space) bands under Resolution 169 conditions. Resolution 169 contains technical/off‑axis EIRP density limits that differ fro… - Unwanted Emission Limits for 49.7–50.9 GHz: cost, medium. The FCC proposes to revise unwanted emission limits from earth stations transmitting in 49.7–50.2 GHz and 50.4–50.9 GHz toward the 50.2–50.4 GHz passive band. Proposed numeric limits include: for NGSO earth stations brought into use on/after 2021, −42 dBW/200 MHz (with uplink power control allowing… - NAVDAT Use at 495–505 kHz (Coast Stations Only): benefit, medium. The FCC proposes making 495–505 kHz available for the international NAVDAT system (digital coast‑to‑ship broadcasting) by adding footnote 5.82C and updating footnote US79A so that 435–472 kHz and 479–510 kHz also can be used for NAVDAT. The proposal states NAVDAT transmitting stations are limited t… - Table Mountain Quiet Zone Field Limit Changes: mixed, medium. NTIA requests that the FCC modify the Table Mountain Radio Quiet Zone limits at and above 15.7 GHz by changing the field‑strength/PFD rule to scale with frequency (and to a per‑megahertz basis). The FCC seeks comment on starting the adjustment at 15.7 GHz, the proposed linear/log scaling, bandwidth… ## Related documents - [2026-20591](https://policyrisk.com/federal-register/2026-20591): Information Collection Being Reviewed by the Federal Communications Commission Under Delegated Authority, 2026-10-08 - [2026-20590](https://policyrisk.com/federal-register/2026-20590): Information Collection Being Reviewed by the Federal Communications Commission, 2026-10-08 - [2026-20676](https://policyrisk.com/federal-register/2026-20676): Information Collection Being Reviewed by the Federal Communications Commission Under Delegated Authority, 2026-10-08 - [2026-20607](https://policyrisk.com/federal-register/2026-20607): Information Collections Being Submitted for Review and Approval to Office of Management and Budget, 2026-10-08 - [2026-20681](https://policyrisk.com/federal-register/2026-20681): Information Collection Being Submitted for Review and Approval to Office of Management and Budget, 2026-10-08 - [2026-20486](https://policyrisk.com/federal-register/2026-20486): Information Collections Being Reviewed by the Federal Communications Commission, 2026-10-06 ## Sources - [2026-00588 on federalregister.gov](https://www.federalregister.gov/documents/2026/01/14/2026-00588/implementation-of-the-final-acts-of-the-world-radiocommunication-conference-sharm-el-sheikh-2019) - [2026-00588 as published (PDF)](https://www.govinfo.gov/content/pkg/FR-2026-01-14/pdf/2026-00588.pdf) ## Related - [Previous: 2026-00561, Tribal Consultation on Proposed Modifications to the HIPAA Privacy Rule](https://policyrisk.com/federal-register/2026-00561) - [Next: 2026-00590, HUD's Implementation of the Fair Housing Act's Disparate Impact Standard](https://policyrisk.com/federal-register/2026-00590) - [All Federal Register documents](https://policyrisk.com/federal-register) Source: PRIA, https://policyrisk.com/federal-register/2026-00588 (as of 2026-06-11).