IMO Safety Signs – Maritime Standard Signs
Standard: IMO Symbols
Issued by: International Maritime Organization (IMO)
Region: Global (Maritime Sector)
Related Convention: SOLAS (Safety of Life at Sea)
What Are IMO Safety Signs?
IMO Safety Signs are internationally recognised symbols used on ships and offshore installations to convey safety information in a clear, standardised format. These signs help ensure quick recognition of life-saving equipment, fire-fighting devices, and emergency procedures—even when language barriers exist. The standard is governed by the International Maritime Organization (IMO) and is a critical component of SOLAS.
Why Use IMO-Compliant Signs?
- Essential for SOLAS compliance on vessels and offshore structures.
- Standardised symbols allow for universal understanding, crucial during emergencies.
- Mandatory under MARPOL, LSA, and FSS Codes in many jurisdictions.
- Required by flag states, classification societies, and port authorities worldwide.
IMO Sign Categories
- Life-saving signs – Lifeboats, lifejackets, muster stations, emergency escape routes
- Fire-fighting signs – Fire extinguishers, hydrants, fire hose reels, alarms
- Mandatory action signs – Wear hearing protection, keep clear
- Prohibition signs – No smoking, no open flames
- Hazard signs – Flammable materials, toxic gas
Applications of IMO Signs
- Cargo and passenger ships
- Offshore oil rigs and wind farms
- Ports, harbours, and dry docks
- Marine workshops and engineering facilities