Same-sex marriage in Guernsey June 2018 in Platte Saline. Sark is a constituent Channel Island which forms part of the Bailiwick of Guernsey. It has legislative autonomy and legislation passed by the States of Guernsey do not apply to Sark without approval of the Legislature of Sark, known as the Chief Pleas, as a result same-sex marriages are not performed on Sark. Same-sex marriage in Guernsey The legal status of same-sex unions differs within the Bailiwick of Guernsey, a Crown dependency of the United Kingdom. Same-sex marriage became legal in the jurisdiction of Guernsey on 2 May 2017, and in Alderney on 14 June
External relations of Guernsey bodies such as the EU or the OECD. As a result, the crown dependencies work together on areas of mutual interest. For example, in 2000, the three states cooperated on development of common policies for offshore banking. In 2003, they developed a joint approach to certain EU activities around tax information. The heads of government of the crown dependencies, including Isle of Man, Guernsey, Alderney, Sark, and Jersey, meet at an annual "inter-island" summit, to discuss matters of common concern, such as financial regulation and relations with the UK. The relationship of the Crown with Guernsey has been set out