Title 47Telegraphs, Telephones, and RadiotelegraphsRelease 119-73

§353 Radio equipment and operators

Title 47 › Chapter CHAPTER 5— - WIRE OR RADIO COMMUNICATION › Subchapter SUBCHAPTER III— - SPECIAL PROVISIONS RELATING TO RADIO › Part Part II— - Radio Equipment and Radio Operators On Board Ship › § 353

Last updated Apr 6, 2026|Official source

Summary

Ships that are required to have a radiotelegraph station must carry radio officers for safety. Cargo ships without an automatic radiotelegraph alarm and all required passenger ships must have at least two radio officers aboard. Cargo ships with a working radiotelegraph auto alarm need at least one radio officer who has at least six months total prior service as a radio officer on a U.S. ship or ships. While sailing in the open sea outside a harbor or port, ships must keep a continuous radio watch whenever the station is not being used for authorized messages. A cargo ship with a working auto alarm may instead keep at least eight hours of radio watch per day. The Commission can set specific watch hours if needed for safety, and any auto alarm must be running whenever no radio officer is on watch.

Full Legal Text

Title 47, §353

Telegraphs, Telephones, and Radiotelegraphs — Source: USLM XML via OLRC

(a)Each cargo ship which in accordance with this part is equipped with a radiotelegraph station and which is not equipped with a radiotelegraph auto alarm, and each passenger ship required by this part to be equipped with a radiotelegraph station, shall, for safety purposes, carry at least two radio officers.
(b)A cargo ship which in accordance with this part is equipped with a radiotelegraph station, which is equipped with a radiotelegraph auto alarm, shall, for safety purposes, carry at least one radio officer who shall have had at least six months’ previous service in the aggregate as a radio officer in a station on board a ship or ships of the United States.
(c)Each ship of the United States which in accordance with this part is equipped with a radiotelegraph station shall, while being navigated in the open sea outside of a harbor or port, keep a continuous watch by means of radio officers whenever the station is not being used for authorized traffic: Provided, That, in lieu thereof, on a cargo ship equipped with a radiotelegraph auto alarm in proper operating condition, a watch of at least eight hours per day, in the aggregate, shall be maintained by means of a radio officer.
(d)The Commission shall, when it finds it necessary for safety purposes, have authority to prescribe the particular hours of watch on a ship of the United States which in accordance with this part is equipped with a radiotelegraph station.
(e)On all ships of the United States equipped with a radiotelegraph auto alarm, said apparatus shall be in operation at all times while the ship is being navigated in the open sea outside of a harbor or port when the radio officer is not on watch.

Legislative History

Notes & Related Subsidiaries

Editorial Notes

Amendments

1965—Pub. L. 89–121, among other changes, substituted wherever appearing “radiotelegraph station” for “radiotelegraph installation”, “radiotelegraph auto alarm” for “auto-alarm”, and “radio officer” and “radio officers” for “qualified operator” and “qualified operators”, required a continuous watch to be kept when the radiotelegraph station is not being used for authorized traffic, and inserted “while being navigated in the open sea” in two places. 1954—Act Aug. 13, 1954, amended section to make clear that it applies only to ships equipped with a radiotelegraph installation, not those fitted with a radiotelephone installation. 1943—Subsec. (b). Act
June 22, 1943, substituted “the termination of such emergency or such earlier date as Congress by concurrent resolution may designate” for “
June 30, 1943”. 1941—Subsec. (b). Act
July 8, 1941, inserted exception respecting national emergency.

Statutory Notes and Related Subsidiaries

Partial Repeal Effective
July 1, 1948Acts
July 8, 1941, and
June 22, 1943, which amended subsec. (b) of this section by adding the clause authorizing suspension or modification of the service requirement during the emergency, were repealed, effective
July 1, 1948, by act
July 25, 1947, which provided that such acts should remain in full force and effect until such date.

Effective Date

Section effective
May 20, 1937, unless deferred by the Commission, see section 16 of act
May 20, 1937, set out as a note under section 351 of this title. Approval of Operators by Secretary of Navy During WarAct Dec. 17, 1941, ch. 588, 55 Stat. 808, as amended
June 28, 1943, ch. 174, 57 Stat. 244;
June 13, 1945, ch. 190, 59 Stat. 259; 1946 Reorg. Plan No. 3, § 101, eff.
July 16, 1946, 11 F.R. 7875, 60 Stat. 1097, prohibiting employment of radio operators who were disapproved by the Secretary of the Navy during World War II, was repealed by act
July 25, 1947, ch. 327, § 1, 61 Stat. 449.

Reference

Citations & Metadata

Citation

47 U.S.C. § 353

Title 47Telegraphs, Telephones, and Radiotelegraphs

Last Updated

Apr 6, 2026

Release point: 119-73