Glossary · Safety, security & ship regulation

SOLASInternational Convention for the Safety of Life at Sea

The International Convention for the Safety of Life at Sea, 1974 — IMO's main treaty on the safety of merchant ships, from construction and fire protection to life-saving appliances and security.

Term

SOLASALSO: SOLAS 1974 · SOLAS CONVENTION · SAFETY OF LIFE AT SEATOPIC: SAFETY, SECURITY & SHIP REGULATIONSOURCES: 1

Reviewed 2026-10-10

Definition

SOLAS sets the minimum standards for the construction, equipment and operation of merchant ships. The current convention was adopted on 1 November 1974 and entered into force on 25 May 1980. It is kept up to date through the "tacit acceptance" procedure: amendments enter into force on a set date unless enough states object, which is why SOLAS changes several times a decade.[1]

Its chapters cover subdivision and stability, machinery and electrical installations, fire protection, detection and extinction, life-saving appliances, radiocommunications, safety of navigation, carriage of cargoes and dangerous goods, safety management (the ISM Code) and maritime security (the ISPS Code). Flag states enforce it through surveys and certificates; port states check it.[1]

For the purchasing desk SOLAS is the reason much of the safety catalogue is not optional: lifejackets, lifebuoys, pyrotechnics, fire-fighters' outfits and immersion suits must be of an approved type, in the numbers the ship's certificates require, and in date.

Sources

  1. [1] IMO — International Convention for the Safety of Life at Sea (SOLAS), 1974 — https://www.imo.org/en/About/Conventions/Pages/International-Convention-for-the-Safety-of-Life-at-Sea-(SOLAS),-1974.aspx

A working definition for buyers, not legal advice — the contract, the convention text and your club or class have the last word.