The Parliamentary Constituencies Act 1986 (c. 56) is an Act of the Parliament of the United Kingdom. It is the current legislation defining the constitution and work of the four parliamentary Boundary Commissions in the UK. A copy of the current text of the legislation, incorporating all current amendments, is available from the legislation section of the Boundary Commission for Scotland website. The 1986 Act consolidated earlier legislation, namely the House of Commons (Redistribution of Seats) Act 1949 and the Acts of the same name of 1958 and 1979.