Legislation on the web gives rise to a unique set of challenges. The content is of a formal nature with strict rules governing its structure and typographic layout. One piece of legislation can change others, often in complex ways. The text may or may not be in force and may or may not extend to a particular jurisdiction. Yet many users of legislation online, especially those not legally trained or qualified, will assume that legislation is both current and in force simply because it is on the web and available from an official source. This paper sets out the approaches, strategies and technologies that address these challenges for legislation.gov.uk, the UK's official legislation website developed by The National Archives.