WASHINGTON, July 31 -- Federal Aviation Administration has issued a rule called: Requirements for Interference-Tolerant Radio Altimeter Systems.

The rule was published in the Federal Register on July 31 by Bryan K. Bedford, Administrator, Federal Aviation Administration.

Summary: In July 2025, President Trump signed the One Big Beautiful Bill Act. Section 40002 of that law re-institutes the Federal Communications Commission's general auction authority and specifically directs the Commission to complete a system of competitive bidding for not less than 100 megahertz in the 3.98-4.2 gigahertz band (Upper C-band). This final rule supports the Federal Communications Commission's July 2026 Report and Order that makes 160 megahertz of the Upper...