What is "legislation.gov.uk"

Legislation.gov.uk, formerly the UK Statute Law Database is the official web-accessible database of the statute law of the United Kingdom, hosted by The National Archives. It contains all primary legislation in force as of 1991, and all primary and secondary legislation since that date; it does not include legislation which was fully repealed prior to 1991. The contents have been revised to reflect legislative changes up to 2002, with material that has been amended since 2002 noted in a table but not yet fully updated.