The IMO in London is part of the United Nations (UN) and is regulating international rules and codes for the safety and environmental protection for merchant ships. Is has several committees like MSC (Maritime Safety Committee). The most common regulation is the Convention for Safety of Life at Sea (SOLAS).

IMO International Maritime Organisation (in London, ehem. IMCO bis 1982) – Orange Book
Fachausschüsse der IMO
MSC Maritime Safety Commitee (Richtlinien für den Transport gefährlicher Güter)
MEPC Maritime Environment Protection Commitee (Einstufung ´marine pollutants´)