Health and safety legislation, COSWP and risk assessment

The Legal Framework a Master Must Own

Health and safety on a UK-flagged yacht does not sit in a single statute — it layers from primary legislation down through codes and guidance, and the Master is the person the law looks to on board.

The Merchant Shipping and Fishing Vessels (Health and Safety at Work) Regulations 1997 (as amended) are the foundation. They transpose the general principles of the Health and Safety at Work etc. Act 1974 into the maritime environment. The duty-holder on board is the employer (the owner or operator), but the Master exercises that duty in practice. Failure belongs to the Master when the system breaks down at sea.

The Code of Safe Working Practices for Merchant Seafarers (COSWP) is the practical instrument. It is not merely guidance — Merchant Shipping Notice MSN 1858 (current at Amendment 2) gives it statutory force for UK-flagged vessels. Where COSWP sets a procedure, departure from it requires a documented and defensible reason. The examiner wants to hear that you treat COSWP as a minimum standard, not a manual you consult after an incident.

Risk Assessment: Why It Is the Master's Act, Not the Safety Officer's

The 1997 Regulations require a suitable and sufficient risk assessment before any work activity that presents a hazard. The sequence is deliberate:

1. Identify the hazard — what can cause harm. This demands familiarity with the task, not a generic form.
2. Identify who is at risk — crew, guests, contractors, persons in the water nearby. On a yacht, guests introduce unpredictability that a cargo vessel does not face; the assessment must account for that.
3. Evaluate the risk — likelihood combined with severity. This is where COSWP steers you toward hierarchy of control.
4. Apply controls, highest to lowest — eliminate, substitute, engineer out, administrative controls (permits, procedures, supervision), personal protective equipment as the last resort, not the first.
5. Record and communicate — the assessment means nothing if the crew doing the work have not been briefed. The Master signs; the crew who are exposed receive the content in a language they understand.
6. Review — when the task changes, when conditions change, after any near-miss or incident. A static risk assessment is a liability document, not a safety one.

Permit-to-Work systems (enclosed space entry, hot work, working aloft, working overside) formalise the risk assessment for high-hazard tasks. They impose a pause before the work starts — that pause is the Master's last checkpoint. Signing a permit carries personal accountability; the Master must be satisfied the controls are physically in place, not merely written down.

The Master's Command Position

The ISM Code (SOLAS Chapter IX) reinforces this: the Master has overriding authority to take decisions necessary for safety. That authority is meaningless without a functioning safety management system that includes live risk assessment. In an oral exam, linking COSWP compliance to the ISM SMS demonstrates command depth — you are not reciting a code, you are describing how you manage your vessel.