How it started
History
Jersey Post was established (as the Committee for Postal Administration) by the Post Office (Jersey) Law 1969, in 1969 as a result of an Order in Council which enabled the Crown Dependencies to establish independent postal services.
Jersey is postcoded as the JE postcode area, established between 1990 and 1994 as an extension of the United Kingdom postcode system. Previously, Jersey did not have postcodes (despite an unsuccessful experiment using delivery round numbers).
Jersey Post International Limited was incorporated as a Limited Liability Company by the States Assembly on 1 July 2006 when the Postal Services (Jersey) Law 2005 came fully into force allowing competition in this sector for the first time. It is licensed by the Jersey Competition Regulatory Authority as a Class II postal operator and, as such, is designated to hold significant market power and thus is liable for the universal service on the Island. Jersey Post International Limited is wholly owned by the Government of Jersey through Government of Jersey Investments Limited.
From Wikipedia’s article on Jersey Post, shared under CC BY-SA 4.0.2