The Extradition Act 2003 (c.41) is an Act of the Parliament of the United Kingdom which regulates extradition requests by and to the United Kingdom. The Act came into force on 1 January 2004. It transposed the European Arrest Warrant framework decision into British law and implemented the UK side of the controversial UK–US extradition treaty of 2003 before the treaty came into force in April 2007 after being ratified by the US Senate in 2006.