33 CFR 151.39: Operating requirements for Category D NLS ships

Last reviewed: October 14, 2026

This section sets operating requirements for oceangoing ships that carry a Category D NLS listed in § 151.47. The master or person in charge must ensure the ship is operated as prescribed in certain sections of 46 CFR part 153. The section itself does not give the operating details.

Applies toIt applies to the master or person in charge of an oceangoing ship that carries a Category D NLS listed in § 151.47.

What it says

  1. The master or person in charge of an oceangoing ship that carries a Category D NLS listed in § 151.47 must ensure the ship is operated as prescribed in the named sections of 46 CFR.

    “The master or person in charge of an oceangoing ship that carries a Category D NLS listed in § 151.47 shall ensure that the ship is operated as prescribed”
  2. The operating rules come from 46 CFR 153.901, 153.909, 153.1100, 153.1104, 153.1106, 153.1124, 153.1126, and 153.1128, which cover the operation of oceangoing ships carrying Category D NLSs.

    “for the operation of oceangoing ships carrying Category D NLSs in 46 CFR 153.901, 153.909, 153.1100, 153.1104, 153.1106, 153.1124, 153.1126, and 153.1128.”

Common questions

Who must ensure a ship follows Category D NLS operating requirements?

The master or person in charge of an oceangoing ship that carries a Category D NLS listed in § 151.47 must ensure the ship is operated as prescribed.

“The master or person in charge of an oceangoing ship that carries a Category D NLS listed in § 151.47 shall ensure that the ship is operated as prescribed”

Which 46 CFR sections set the operating rules for Category D NLS ships?

The text names 46 CFR 153.901, 153.909, 153.1100, 153.1104, 153.1106, 153.1124, 153.1126, and 153.1128.

“for the operation of oceangoing ships carrying Category D NLSs in 46 CFR 153.901, 153.909, 153.1100, 153.1104, 153.1106, 153.1124, 153.1126, and 153.1128.”

The text of 33 CFR 151.39

Electronic Code of Federal Regulations (eCFR), current as of April 16, 2026 · Read it on eCFR

Operating requirements: Category D NLS

The master or person in charge of an oceangoing ship that carries a Category D NLS listed in § 151.47 shall ensure that the ship is operated as prescribed for the operation of oceangoing ships carrying Category D NLSs in 46 CFR 153.901, 153.909, 153.1100, 153.1104, 153.1106, 153.1124, 153.1126, and 153.1128.

Sections it refers to

The plain-English explanation on this page was written with AI from the regulation text above and checked automatically before publishing: every quote appears in the text, every number comes from it, and a second model confirmed each statement adds nothing the text doesn't say. Regulation text current as of April 16, 2026. The regulation text governs. RegKnot is not affiliated with the U.S. Coast Guard.