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Are Man Overboard Drills Mandatory on All Vessels?

May 8, 2026

Quick Answer

Mandatory man overboard drills are required by the International Maritime Organization (IMO) for commercial vessels, but regulations vary by country and type of vessel.

IMO Regulations

The International Maritime Organization (IMO) requires commercial vessels to conduct regular man overboard drills as part of their safety procedures. According to the International Convention for the Safety of Life at Sea (SOLAS), Chapter V, Regulation 19, all commercial vessels must conduct a man overboard drill at the end of the first period of the approved drill, if the vessel is operating for more than 3 months without a break. The drill must include a minimum of 4 crew members, and the vessel’s crew must be familiar with the procedures for man overboard recovery.

Vessel Types and Regulations

Not all vessels are required to conduct man overboard drills. For example, recreational vessels with a capacity of less than 12 passengers are not required to conduct regular drills, but it is still highly recommended. The US Coast Guard also requires commercial vessels to conduct regular man overboard drills, but the requirements may differ depending on the specific type of vessel and its operation. The US Coast Guard requires vessels over 79 feet in length to conduct a man overboard drill every 3 months.

Best Practices and Techniques

Regardless of regulations, conducting regular man overboard drills is essential for all vessels to ensure a quick and effective response in case of an emergency. Best practices include having a designated man overboard recovery team, conducting regular drills with all crew members, and practicing recovery techniques such as using a throwing line or a life raft. Vessels should also have a clear and concise man overboard procedure in place, including communication protocols and equipment checks.

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