A credential for apprentice mate (steersman) of towing vessels shall be renewed within what time period before or after the expiration date?

Correct Answer: Option B — 12 months

USCG licensing regulations under 46 CFR permit holders of an apprentice mate (steersman) credential to apply for renewal up to 12 months after the expiration date without retaking complete examinations, provided all other continuity requirements are met.