An introduction to the United Nations Convention on the Law of the Sea (UNCLOS) which provides a framework for the use of the oceans.

Information about the legislation relating to the discharge of black water from holding tanks at sea.

Automatic Transmitter Identification System (ATIS) is required for vessels making VHF transmissions whilst on the inland waterways of the Regional Arrangement Concerning the Radiotelephone Service on Inland Waterways (RAINWAT) signatory countries.