The Protection of Wrecks Act 1973 is an act of the Parliament of the United Kingdom which provides protection for designated shipwrecks.
Section 1 of the act provides for wrecks to be designated because of historical, archaeological or artistic value. Section 2 provides for designation of dangerous sites. Wreck sites must have a known location in order to be designated. Designated wrecks are marked on admiralty charts and their physical location is sometimes marked by means of a buoy. Information boards are often provided at nearby launch points on land. From Wikipedia
