SV-CESOR-L1.1

IMO, ILO and the Administration: where the rules come from

SV-CESOR-M1 · The regulatory framework · SV-CESOR-M1-A Who makes the rules, and what SOLAS, MARPOL and STCW require of the chief engineer on a yacht.

Before you can comply with a rule you need to know who wrote it, how it reaches your yacht and how much weight it carries. **Section 1, 6 and 7 of the CESOR syllabus** in one lesson.

Rules and their authors

Governing: CESOR written syllabus sections 1, 6 and 7. Builds on: SV Engineer Officer of the Watch.

Why a chief engineer needs this

The CESOR paper (assessment code 059-01 in MIN 712 Amendment 1) starts with institutions, not machinery. The examiner is testing whether you can trace a requirement on your yacht back to its source, judge how binding it is, and know who can enforce it.

The IMO

The International Maritime Organization is the UN agency that writes the international safety and pollution rules.

Body What it does
Assembly All Member States; highest governing body; meets every two years
Council Executive organ; 33 members elected for two-year terms (expansion to 52 in progress)
Committees Maritime Safety (MSC), Marine Environment Protection (MEPC), Legal, Technical Co-operation, Facilitation
Sub-committees Seven, feeding MSC and MEPC (human element and training, navigation, pollution prevention, ship design and construction, cargoes and others)
Secretariat Staff in London under the Secretary-General

IMO instruments

Instrument What it is Example
Convention Treaty binding on states that ratify it SOLAS, MARPOL, STCW, Load Lines
Code Detailed rules, mandatory when a convention says so ISM Code (SOLAS IX), ISPS Code, FSS Code
Protocol Treaty that modifies a convention 1988 SOLAS and Load Line Protocols (HSSC)
Amendment Change adopted by a committee, usually by tacit acceptance MEPC amendments to MARPOL Annex VI
Resolution The vehicle for amendments, guidelines and recommendations MSC.206(81), MEPC.251(66)

IMO has no inspectors. A convention bites only when a state writes it into its own law and enforces it as flag state on its own ships and as port state on visitors.

The ILO and the MLC

The International Labour Organization is tripartite: governments, shipowners and seafarers all vote. Its maritime instrument is the Maritime Labour Convention 2006, adopted 23 February 2006 and in force since 20 August 2013. It consolidated dozens of older labour conventions into one: minimum age, employment agreements, hours of rest, accommodation, food, medical care and complaints. Lesson 4.1 covers what it means in your engine room.

The Administration: the MCA

For a UK yacht the Administration is the Maritime and Coastguard Agency. Law is made by Acts and Statutory Instruments; the MCA publishes M-notices to fill in detail and explain.

Notice Weight
MSN (Merchant Shipping Notice) Technical detail that the regulations make mandatory, e.g. MSN 1904 for SV engineer CoCs
MGN (Marine Guidance Note) How the MCA expects the law to be met; departing from it needs a justified equivalent
MIN (Marine Information Note) Time-limited information with an expiry date, e.g. MIN 642

Suffixes show who a notice is for: (M) merchant, (F) fishing, (M+F) both.

Flag, port and class

  • Flag State Control: the flag certifies the yacht, surveys it (directly or through a Recognised Organisation) and investigates accidents.
  • Port State Control: a coastal state inspects foreign ships in its ports (lesson 2.4).
  • Classification societies: private bodies that set and survey to their own rules, often delegated statutory work (lesson 2.3).
  • MAIB: investigates UK accidents to prevent recurrence, not to blame (lesson 4.3).

For large commercial yachts the Red Ensign Group applies the international conventions through the REG Yacht Code, whose Part A covers yachts of 24 m load line length and over in commercial use carrying no more than 12 passengers.

TIP — Read the notice number A notice with an amendment number and a date tells you whether you have the current text. Always check gov.uk for the latest amendment before relying on an old copy on board.

Independent study. xplor is not an accredited training provider and awards no certificate or Certificate of Competency. The CESOR module must be completed with an MCA-approved training provider and the written assessment passed before it counts towards an SV Chief Engineer CoC. AI-drafted content pending subject-matter-expert review.