This document establishes the legal framework for the immunities and privileges granted to the International Maritime Satellite Organization (Inmarsat) within the jurisdiction of Great Britain. The order is issued by the British government to formalize the status of the organization under international treaty obligations. It delineates the specific legal protections afforded to the entity and its representatives to ensure the functional operation of maritime satellite communications.

Legal professionals and historians utilize this text as a primary source for understanding the implementation of international organizational law in the United Kingdom. It is recognized as a standard regulatory instrument for the period in which it was enacted.