As a management level engineering officer planning for underway operations onboard a tanker, you must maintain manning in the engineering spaces while underway in accordance with the certificate of inspection (COI) and the navigation safety regulations for underway tankers as set forth in 33 CFR. Which of the following statements is true?

Correct Answer: Option C — Tankers are required to maintain a continuous engineering watch while underway and be capable of implementing manual control measures immediately when necessary.

Title 33 CFR navigation safety regulations require underway tankers to maintain a continuous engineering watch and remain capable of implementing immediate manual control measures in machinery spaces when necessary.