The European Communities (Amendment) Act 1986 (c. 58) is an Act of the

Parliament of the United Kingdom The Parliament of the United Kingdom is the supreme legislative body of the United Kingdom, the Crown Dependencies and the British Overseas Territories. It meets at the Palace of Westminster, London. It alone possesses legislative suprema ...

which saw the first major amendment to the European Communities Act 1972 since the UK first joined the

European Communities The European Communities (EC) were three international organizations that were governed by the same set of institutions. These were the European Coal and Steel Community (ECSC), the European Atomic Energy Community (EAEC or Euratom), and the ...

thirteen years earlier to include the provisions that was agreed in the

Single European Act The Single European Act (SEA) was the first major revision of the 1957 Treaty of Rome. The Act set the European Community an objective of establishing a single market by 31 December 1992, and a forerunner of the European Union's Common Foreign ...

which was signed on 17 and 28 February 1986 and be incorporated into the domestic law of the

United Kingdom The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Europe, off the north-western coast of the continental mainland. It comprises England, Scotland, Wales and North ...

It was given

Royal assent Royal assent is the method by which a monarch formally approves an act of the legislature, either directly or through an official acting on the monarch's behalf. In some jurisdictions, royal assent is equivalent to promulgation, while in other ...

on 7 November 1986. The Act was repealed by the

European Union (Withdrawal) Act 2018 The European Union (Withdrawal) Act 2018 (also known as the Great Repeal Act) is an Act of Parliament, Act of the Parliament of the United Kingdom that provides both for repeal of the European Communities Act 1972 (UK), European Communities A ...

on 31 January 2020.

See also