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47 U.S.C. 353a: Operators and watches on radiotelephone equipped shipsText contains those laws in effect through Public Law 119-120 (October 7, 2026).
From Title 47-TELECOMMUNICATIONSCHAPTER 5-WIRE OR RADIO COMMUNICATION

§353a. Operators and watches on radiotelephone equipped ships

(a)  Each cargo ship which in accordance with this part is equipped with a radiotelephone station shall, for safety purposes, carry at least one operator who may be the master, an officer, or a member of the crew.

(b)  Each cargo ship of the United States which in accordance with this part is equipped with a radiotelephone station shall, while being navigated in the open sea outside of a harbor or port, maintain continuous watch whenever the station is not being used for authorized traffic.

( June 19, 1934, ch. 652 , title III, § 354, as added Aug. 13, 1954, ch. 729, § 2(b) , 68 Stat. 706 ; amended Pub. L. 89–121, § 5 , Aug. 13, 1965 , 79 Stat. 514 .)

Editorial Notes

Amendments

1965⁠—Pub. L. 89–121 substituted “radiotelephone station” for “radiotelephone installation” in two places, and “one operator who may be the master, an officer, or a member of the crew” for “one qualified operator who may be a member of the crew holding only a certificate for radio telephony”, inserted “in the open sea” before “outside of a harbor”, and required a continuous watch whenever the station is not being used for authorized traffic.