49 CFR 236.577 - Test, acknowledgement, and cut-in circuits.

Regulations last checked for updates: Feb 06, 2026

Title 49 - Transportation last revised: Jan 27, 2026

§ 236.577 - Test, acknowledgement, and cut-in circuits.

Test, acknowledgement, and cut-in circuits shall be tested at least once every twelve months.

[49 FR 3387, Jan. 26, 1984]

authority: 49 U.S.C. 20102-20103,20107,20133,20141,20157,20301,20306,20501,20701,21301,21304; 28 U.S.C. 2461 note; and 49 CFR 1.89

source: 33 FR 19684, Dec. 25, 1968, unless otherwise noted.

cite as: 49 CFR 236.577