Under the Laws in Wales Act 1536 Wales was fully incorporated into England and administered as a single sovereign state (the Kingdom of England) with a single legal system (English law). In 1964 that the Secretary of State for Wales was created as a Cabinet post, which gave some powers to Wales. After the 1997 United Kingdom general election, the Labour Government published a white paper in July 1997, called "A Voice for Wales"; in it, the UK Government proposed that "(the Welsh Assembly) headquarters will be in Cardiff ... (the) setting up (of) the Assembly is likely to cost between £12M and £17M. Additional running costs should be between £15M and £20M a year." On 18 September 1997, Wales voted in favour of a National Assembly for Wales in the Welsh devolution referendum. The Government of Wales Act 1998 was passed by the Parliament of the United Kingdom, and was granted Royal Assent on 31 July 1998.