What type of board is utilized by the Coast Guard to ensure competency in sea operations?

The Board of Inspection and Survey (INSURV) is the correct answer as it plays a crucial role in the U.S. Coast Guard's efforts to ensure competency in sea operations. This board is responsible for assessing the material condition of vessels and conducting inspections to ensure they are ready and capable of performing their missions effectively and safely. Through its evaluations, INSURV ensures that technical standards are met and that operational readiness is maintained.

This process involves examining various aspects of the vessels, including hull integrity, machinery, and safety equipment. By carrying out these inspections, INSURV helps to identify any deficiencies that could impact the operational capabilities of the Coast Guard vessels, thus enhancing the safety and effectiveness of maritime operations.

The other options pertain to different roles or functions within maritime operations or governance but do not specifically focus on the competency in sea operations as effectively as the Board of Inspection and Survey does. For example, a Board of Standards and Practices may address broader regulatory standards, while a Coast Guard Review Board and a Fleet Operations Board would have different operational focuses not directly aimed at the vessel inspection and competency assessment function.