Maritime Glossary
Source-cited definitions for shipping, engineering, navigation, and regulatory terminology. Confidence-scored and verified against primary IMO, IHO, and industry sources.
- IMDG CodeInternational Maritime Dangerous Goods Code
- The international standard for safe carriage of dangerous goods in packaged form by sea.
- cargoregulationsafetyhigh confidence
- IMO GHG Strategy2023 IMO GHG Strategy · IMO decarbonisation strategy
- IMO's revised framework targeting net-zero greenhouse gas emissions from international shipping by or around 2050.
- decarbonizationregulationenvironmenthigh confidence
- IMO NumberIMO Ship ID
- A unique seven-digit identifier assigned permanently to a seagoing merchant ship by the IMO.
- regulationship-identityhigh confidence
- ISM CodeInternational Safety Management Code · SMS
- The IMO code requiring shipping companies and ships to implement a Safety Management System (SMS) to prevent accidents and pollution.
- safetyregulationmanagementhigh confidence
- ISPS CodeInternational Ship and Port Facility Security Code
- The IMO security framework requiring ships and port facilities to implement security plans and designate security officers.
- securityregulationhigh confidence
- Ice Classpolar class · ice strengthening · winterization
- A classification notation indicating the degree to which a vessel has been designed and strengthened to operate in sea ice.
- vessel-typesnavigationregulationhigh confidence
- International Association of Classification SocietiesIACS
- The umbrella body of major classification societies, establishing unified technical requirements for ship construction and maintenance.
- regulationorganizationssafetyhigh confidence
- International Maritime OrganizationIMO
- The UN specialised agency responsible for the safety, security, and environmental performance of international shipping.
- organizationsregulationhigh confidence