Question 1614 Deck General

The correct answer is D) At no time. A work vest cannot be substituted for a required life jacket on an OSV (Offshore Supply Vessel). Life jackets are a critical safety device that must be worn at all times when on deck or in small boats, as they provide essential flotation in the event of an emergency. Work vests are not approved as a substitute for life jackets, as they may not provide the same level of buoyancy and protection. The regulations are clear that life jackets, not work vests, are the required safety equipment for personnel on OSVs. The other options (A, B, C) are incorrect because work vests are never an acceptable replacement for life jackets, regardless of the situation or activity on an OSV.