The National Security and Investment Act 2021 (the ‘Act’) received Royal Assent on 29 April 2021, granting the UK Government new powers to scrutinise investments on national security grounds. The Act is expected to come into force by the end of 2021. In this briefing we recap the Act, review its entry into force including retrospective provisions and consider the Government’s proposed revised definitions of three of the Act’s 17 sectors for mandatory notification: transport, energy and defence.
