On Monday January 29th, 2024, the Federal Communications Commission proposes the implementation of certain decisions regarding the 24.25-27.5 GHz band made in the World Radiocommunications Conference held by the International Telecommunication Union (ITU) in 2019 (WRC-19). Specifically, the commission proposed to align part 30 of the Commissions’s rules for mobile operations with the Resolution 750 limits on unwanted emissions into the passive 23.6-24.0 GHz band that were adopted at WRC-19. The proposed rule changes would help facilitate the protection of passive sensors used for weather forecasting and scientific research in the 23.6 GHz-24 GHz band, while continuing to promote flexible commercial use of the 24.25-24.45 GHz and 24.75-25.25 GHz Band (collectively, 24 GHz band). The Commission also seeks comments on alternatives to the proposals it makes, and on other related issues.

Comments are due on or before February 28,2024: reply comments are due on or before March 14, 2024. Written comments on the Initial Regulatory Flexibility Analysis (IRFA) in this document must have a separate and distinct Heading designating them as responses to the IRFA and must be submitted by the public on or before February 28, 2024.

ADDRESSES: Pursuant to Sec. Sec. 1.415 and 1.419 of the Commission's rules, 47 CFR 1.415, 1.419, interested parties may file comments and reply comments on or before the dates indicated on the first page of this document. Comments may be filed using the Commission's Electronic Comment Filing System (ECFS). See Electronic Filing of Documents in Rulemaking Proceedings, 63 FR 24121 (1998). You may submit comments, identified by ET Docket No. 21-186, by any of the following methods:

Electronic Filers: Comments may be filed electronically using the internet by accessing the ECFS: LINK.

Paper Filers: Parties who choose to file by paper must file an original and one copy of each filing. Filings can be sent by commercial overnight courier, or by first-class or overnight U.S. Postal Service mail. All filings must be addressed to the Commission's Secretary, Office of the Secretary, Federal Communications Commission. Commercial overnight mail (other than U.S. Postal Service Express Mail and Priority Mail) must be sent to 9050 Junction Drive, Annapolis Junction, MD 20701.

U.S. Postal Service first-class, Express, and Priority mail must be addressed to 45 L Street NE, Washington, DC 20554. Effective March 19, 2020, and until further notice, the Commission no longer accepts any hand or messenger delivered filings.