ABP is the Statutory Harbour Authority for a number of ports and harbours located around the UK. Each port or harbour has its own bye-laws. These are local laws for the regulation and administration of the port or harbour concerned. As a general rule, the bye-laws set out the powers of the harbour master and provide for the orderly control of such matters as navigation, mooring and handling of goods and cargo. Bye-laws are made by the Statutory Harbour Authority (ABP or its predecessors) using delegated powers originally conferred by Act of Parliament.