MCA Compliance

What is MCA compliance?

MCA compliance is the colloquial label most buyers and brokers use for certifying a yacht under the Red Ensign Group Yacht Code (REG-YC). The UK Maritime and Coastguard Agency (MCA) is the UK flag-state administrator: it surveys the yacht, issues the certificates, and enforces the rulebook on the British register. Ten other Red Ensign registers, including the Cayman Islands, Bermuda, the BVI, Gibraltar, and the Isle of Man, administer the same code on their own flags.

REG-YC came into force on 1 January 2019. It consolidated three predecessor frameworks: the Large Yacht Code 3 (LY3), the Passenger Yacht Code (PYC), and the small commercial vessel guidance in MGN 280. The code now sits in two parts. Part A sets construction, machinery, safety equipment, stability, and manning requirements for yachts of 24 metres or larger in commercial use. Part B adds the regime for passenger yachts carrying 13 to 36 guests.

The hierarchy matters. The IMO writes the underlying conventions: SOLAS, MARPOL, STCW, MLC 2006, and the ISM Code. REG-YC translates those conventions into a yacht-specific rulebook. The MCA administers REG-YC through scheduled surveys aligned with the yacht's classification society.

Why it matters for yacht owners

For any buyer at 24 metres and above, REG-YC compliance determines what your yacht can legally do. A certified yacht in commercial use can charter across the Mediterranean, Caribbean, and Pacific cruising grounds; a non-certified yacht of equivalent size cannot, regardless of pedigree or asking price.

The private versus commercial decision is the costliest one to get wrong. Converting a privately-built yacht to commercial charter mid-life typically triggers a partial refit (additional manning capacity, structural fire-protection upgrades, extra life-saving equipment) that is rarely budgeted at acquisition.

Key facts

• REG-YC replaced LY3, the PYC, and parts of MGN 280 on 1 January 2019.
• 24 metres LOA is the Large Yacht threshold, the entry point for REG-YC Part A.
• 500 GT triggers ISM Code application, additional STCW-certified officers, and a mandatory Designated Person Ashore (DPA).
• 12 passengers is the split: above 12, a yacht falls under REG-YC Part B (or full SOLAS for very large passenger yachts).
• Eleven Red Ensign registers administer REG-YC: UK, Cayman, Bermuda, BVI, Gibraltar, Isle of Man, Anguilla, Falklands, Montserrat, St Helena, Turks and Caicos.
• Survey cycle: Initial, Annual, Intermediate (around 2.5 years), and Renewal (5-year), synchronised with classification society periodic surveys.
• Underlying IMO conventions implemented through REG-YC: SOLAS, MARPOL, STCW, MLC 2006, and the ISM Code.