The Legal Framework: How the Pieces Fit
Three distinct instruments govern health and safety at sea for UK-flagged yachts. Candidates routinely conflate them — an examiner will probe this directly.
The Merchant Shipping and Fishing Vessels (Health and Safety at Work) Regulations 1997 (as amended) are the primary enabling legislation. They apply MHSW-style duties to ships: the employer must ensure, so far as reasonably practicable, the health, safety and welfare of seafarers. The master carries operational responsibility. These Regulations have the force of law.
COSWP — the Code of Safe Working Practices for Merchant Seafarers — is the statutory code of practice issued under those Regulations. It is not itself law, but a court or Marine Accident Investigation Branch inquiry will treat departure from it as evidence of negligence unless an equally safe alternative was demonstrably in use. Think of COSWP as the "how to comply" companion to the Regulations. The master must ensure a current copy is available on board (the Merchant Shipping Notice requires carriage).
MSN 1858 cross-references these requirements within the Red Ensign Group framework for yachts, linking to the yacht code. It is the instrument that makes COSWP carriage and application explicit for the yacht sector.
Key distinction for the oral: the Regulations impose the duty; COSWP provides the recognised means of fulfilling it; MSN 1858 confirms applicability to your vessel.
Risk Assessment: Command-Level Obligations
Under the 1997 Regulations, a suitable and sufficient risk assessment is mandatory before undertaking any work activity that carries significant risk. As master, you own this process — delegation to a mate or bosun does not remove your accountability.
A defensible risk assessment:
- Identifies hazards and the persons at risk
- Evaluates likelihood and severity (qualitative is acceptable; a numerical matrix is not required by law, merely one common method)
- Implements control measures to reduce risk to ALARP (as low as reasonably practicable)
- Is recorded in writing if five or more persons are employed (the threshold is employees, not persons on board)
- Is reviewed when circumstances change — a change of passage area, new crew, altered task
The examiner will expect you to distinguish hazard (a source of potential harm) from risk (the likelihood that harm occurs and its severity). These are not interchangeable.
Permit-to-Work as a Control Measure
COSWP mandates permit-to-work (PTW) systems for specific high-risk activities including enclosed space entry, hot work, work aloft and overside work. A PTW is not merely a form — it is a controlled communication confirming that hazards have been assessed, controls are in place, and authority to proceed has been granted by the master or a nominated responsible officer. Signing a PTW without physically verifying conditions is a command failure.