Article 2 of this Order establishes, under section 22(1) and (2) of the Petroleum Act 1987, safety zones having a radius of 500 metres from the specified point around the two installations (which are subsea installations) specified in the Schedule to this Order stationed in waters to which section 21(7) of that Act applies (these include territorial waters and waters in areas designated under section 1(7) of the Continental Shelf Act 1964 (c. 29)).