COMDTINST 16000.74 — Marine Safety: International Conventions, Treaties, Standards, And Regulations

COMDTINST 16000.74 governs Coast Guard procedures for international maritime conventions, treaties, standards, and regulations.

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  • Publication number: COMDTINST 16000.74
  • Title: MARINE SAFETY: INTERNATIONAL CONVENTIONS, TREATIES, STANDARDS, AND REGULATIONS
  • Date: 9/20/2021
  • Proponent: CG-CVC

View COMDTINST 16000.74 on armypubs.army.mil

It covers MARPOL 73/78 vessel requirements, including oil pollution prevention, IOPP Certificates, Oil Record Books, and oil content monitors. It also addresses Annex II discharge restrictions, alleged discharge investigations, ISM Code compliance, and vessel examinations.

Topics covered

  • MARPOL 73/78 vessel requirements
  • Oil pollution prevention equipment
  • IOPP Certificates
  • Oil Record Books
  • Oil Content Monitors
  • MARPOL Annex II discharge restrictions
  • ISM Code compliance
  • Damage stability information

Questions and answers

Which U.S. ships need a valid IOPP Certificate for international voyages?

Each U.S. oil tanker of 150 GT and above and each other U.S. ship of 400 GT and above that engages in voyages to ports or offshore terminals under the jurisdiction of other parties to MARPOL 73/78 must have a valid IOPP Certificate. (paragraph 6-94)

Do ships engaged solely in coastwise trade need an IOPP Certificate?

Inspected ships engaged solely in coastwise trade are not required to have an IOPP Certificate, since they are not making an international voyage. (paragraph 6-94)

What happens when an Oil Content Monitor detects more than 15 ppm of oil?

The OCM must activate the alarm and close the overboard discharge valve and direct the discharge back to a tank or the bilge when the processed effluent exceeds 15 ppm of oil. (paragraph 2)

What records must certain oceangoing ships maintain in an Oil Record Book?

Oceangoing oil tankers of 150 GT and above and all other oceangoing ships 400 GT and above, without regard to the ship's age, are required by MARPOL Annex I and 33 CFR 151.25 to maintain an ORB. (paragraph 1-57)

What is required when stability information is unavailable?

If there is no stability Information available, this is considered a major deficiency. (paragraph 4)

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