U.S. regulations require all tankships of 150 GT and above and all other ships of 400 GT and above, to prepare and maintain which of the following?

Correct Answer: Option B — a USCG approved shipboard oil pollution emergency plan

MARPOL Annex I and 33 CFR 151.26 mandate that all oil tankers of 150 GT and above, and other vessels of 400 GT and above, maintain a USCG-approved Shipboard Oil Pollution Emergency Plan (SOPEP). This document provides essential procedures for responding to oil spills and minimizing environmental impact.