CFR›Title 47›Chapter I›Part 87›Subpart F ContainsSections 87.185–87.191; Subject group Emergency Locator TransmittersCorpusDaily eCFRDisplayed edition2026-04-15Last updated2026-04-15 Subpart F—Aircraft Stations Contents 87.185 § 87.185 Scope of service. 87.187 § 87.187 Frequencies. 87.189 § 87.189 Requirements for public correspondence equipment and operations. 87.191 § 87.191 Foreign aircraft stations. Emergency Locator Transmitters Emergency Locator Transmitters Sections 87.193–87.199 Previous E Subpart E—Frequencies Next G Subpart G—Aeronautical Advisory Stations (Unicoms)