Which statement concerning GMDSS maintenance requirements is FALSE?

Correct Answer: Option C — If shore-based maintenance is used, maintenance services do not have to be completed or performance verified unless the vessel will be sailing to a non-US port.

SOLAS regulations require Sea Area A3 and A4 vessels to utilize two of three specified maintenance options. Statement C is false because shore-based maintenance contracts and service verifications are mandatory for regulatory compliance regardless of destination ports.