Same-sex marriage in Guernsey changes to other laws are approved by the States at its meeting on 26 April. On 26 April, the States approved both ordinances, and the law took effect on 2 May 2017. It applies to the jurisdiction of Guernsey, but not to Alderney and Sark. Alderney, one of the three constituent Channel Islands which form the Bailiwick of Guernsey, has full autonomy in most legal matters (except foreign affairs and other powers that have been transferred to the States of Guernsey), through the States of Alderney. Same-sex marriage is legal in Alderney. On 21 February 2017, the States of Alderney's
Postage stamps and postal history of Guernsey the 1950s Guernsey used British regional stamps marked specifically for use in Guernsey but valid for postage throughout the United Kingdom. Guernsey has issued its own stamps since the creation of Guernsey Post, 1 October 1969. The Bailiwick of Guernsey incorporates Alderney, Herm and Sark which all used the Guernsey issues from 1969. From 1983 Guernsey began issuing specific stamps designated Alderney for use in that island which are also valid throughout the Bailiwick of Guernsey.. In 1998 postage stamps were issued without a price stated on the stamp, the terms "Local" and "UK" being used to distinguish the values.