What periodic inspection is required in order to remain in compliance with the regulations regarding GMDSS ship radio station inspections?

Correct Answer: Option B — An inspection at least once every 12 months by the FCC or a holder of a GMDSS Maintainers license.

Compliance with GMDSS regulations requires a formal radio station inspection at least once every 12 months. This must be conducted by the FCC or an authorized entity, such as a licensed GMDSS maintainer, to verify that the vessel's radio installation meets all mandatory safety and operational performance criteria.