49 CFR 220.47 - Emergency radio transmissions.

Regulations last checked for updates: May 04, 2025

Title 49 - Transportation last revised: Mar 20, 2025

View all text of Subpart B [§ 220.21 - § 220.61]

§ 220.47 - Emergency radio transmissions.

An initial emergency radio transmission shall be preceded by the word “emergency,” repeated three times. An emergency transmission shall have priority over all other transmissions and the frequency or channel shall be kept clear of non-emergency traffic for the duration of the emergency communication.

authority: 49 U.S.C. 20102-20103,20103,note,20107,21301,20701,21304,21311; 28 U.S.C. 2461 note; and 49 CFR 1.89

source: 63 FR 47195, Sept. 4, 1998, unless otherwise noted.

cite as: 49 CFR 220.47