MCA vs. Spanish flag: what changes for crew

Choosing the flag under which a yacht operates has direct implications for crew: required certificates, inspection regimes, working-hour limits and the applicability of labour conventions all change. The UK MCA and the Spanish Dirección General de la Marina Mercante are the two authorities most often found on commercial yachts in the Western Mediterranean.

Under British flag, the MCA requires valid Certificates of Competency for each deck and engine position, renewed every five years with Revalidation Training. ENG1 or the equivalent ML5 is mandatory. MLC 2006 applies in full, with audited minimum rest hours and registered SEA (Seafarer Employment Agreement) contracts.

Under Spanish flag, the DGMM accepts STCW and international equivalences but adds local requirements: the Spanish ISM medical exam, a current certificado de aptitud profesional and registration with the Ministry's specific registry. Maximum tonnage limits by rank can differ from MCA rules — a UK Yachtmaster Offshore doesn't always cover the same duties on a similar-size Spanish-flagged yacht.

In day-to-day practice the main difference felt by crew is the inspection regime. A British PSC tends to focus on ISM documentation and emergency drills; a Spanish inspection usually looks at labour and social-security compliance too. For a captain moving from Red Ensign to Spanish flag, the main adjustment is paperwork and local forms, not a different way of running the vessel.