The Territorial Sea (Baselines) Order 2014
This Order establishes the baselines from which the breadth of the territorial sea adjacent to the United Kingdom, the Channel Islands and the Isle of Man is measured in accordance with the United Nations Convention on the Law of the Sea. It applies the relevant provisions of the United Nations Convention, with modifications, as set out in Schedule 1. The baseline is generally the low-water line around the coast, including the coast of all islands.