The Regulatory Framework: Which Instrument Does What?
For yachts under 500 GT, life-saving appliances (LSA) and fire-fighting appliances (FFA) are not governed by SOLAS III and II-2 directly in the way they apply to commercial ships. The examiner will probe whether you understand which instrument applies to your vessel, why, and how the underlying conventions feed into it.
SOLAS (the parent convention) SOLAS Chapters III (LSA) and II-2 (fire protection, detection, extinction) set the international standards. They apply directly to cargo and passenger ships on international voyages above defined thresholds. A private or commercial yacht under 500 GT does not fit neatly into those schedules — but SOLAS still matters because UK domestic instruments draw from it.
MSN 1858 (the UK implementing instrument) MSN 1858 is the MCA's Merchant Shipping Notice that sets out the standards a UK yacht must meet to be issued its certificates. For LSA and FFA, the notice directs certificated yachts to comply with the Red Ensign Group Yacht Code (REG YC). MSN 1858 is what the surveyor and the examiner use as the reference; it is the document you are examined against.
REG YC (the technical standard) The Red Ensign Group Yacht Code (REG YC Part A, which superseded LY3) is where the actual equipment requirements sit. It specifies, by operating area and vessel category, what LSA must be carried (liferafts, EPIRBs, SARTs, immersion suits, lifejackets, lifebuoys, pyrotechnics) and what FFA is required (fixed and portable systems, fire detection, extinguisher types and distribution, fixed CO₂ or equivalent in machinery spaces). The REG YC draws its technical benchmarks from the LSA Code and FFA standards that underpin SOLAS, making them appropriate for yacht construction and operation.
The distinction the examiner tests
- SOLAS = the convention; sets the global standard and the principle.
- MSN 1858 = the UK notice; defines what applies to your yacht and what certificates depend on compliance.
- REG YC = the technical rulebook; tells you exactly what equipment to fit and how to maintain it.
A common examiner trap: asking whether SOLAS Chapter III applies to your yacht. The correct answer is that it does not apply directly, but the REG YC requirements are derived from and broadly consistent with SOLAS and the LSA Code, and MSN 1858 mandates compliance with REG YC as a condition of certification.
Maintenance and records Weekly and monthly checks of LSA, annual servicing of liferafts and hydrostatic releases (by approved service stations), and maintenance of FFA must be logged. These records are evidence of SMS compliance under ISM and are examined by the MCA surveyor on inspection.