You have recently joined a vessel and are reviewing the classification society survey due dates. The last special periodic survey of the vessel was ten months previous. Within what time frame can the annual machinery surveys be completed?

Correct Answer: Option A — 3 months plus or minus the anniversary date of the last special survey.

Annual surveys, including machinery surveys, are required to be completed within a window of three months before or after the anniversary date of the last special survey. This flexibility allows operators to coordinate surveys with vessel schedules while ensuring that the machinery remains in compliance with classification society requirements.