Information Resources Management

Iran (Flag)

Indian Register Quality Systems

Indian Register of Shipping (Class Society)

Information systems

Intact Stability Code (IMO)

Integrated services digital network

Integrated ship design and production

International Shipping Federation

International Federation of Ship Masters Associations

International Safety Guide for Oil Tankers and Terminals

International School for Inspectors of Petroleum

ISM International Safety Management Code (ISM Code)

International Safety Management Code

International Ship Managers' Association

International Support Vessel Owners Association

Israel (Flag)

International Ship Supplies Association

International standard serial number

Intermodal Surface Transportation Efficiency Act