Policy Briefing — UK National Security and Investment Act Passed
The UK enacted the National Security and Investment Act 2021, creating a mandatory notification and call-in regime for acquisitions in 17 sensitive sectors.
The UK National Security and Investment Act received Royal Assent on 29 Apr 2021, granting government sweeping powers to scrutinise and intervene in investments that may pose national security risks. The Act introduces mandatory notification for acquisitions in sectors such as artificial intelligence, data infrastructure, communications, and defence, with a standalone unit in the Department for Business and Trade managing reviews.
- 29 Apr 2021 — Act enacted. The legislation established a hybrid mandatory and voluntary notification regime with retrospective call-in powers.
- 2021-2022 — Secondary legislation. The government defined the 17 sensitive sectors and consultation guidance ahead of commencement on 4 Jan 2022.
- 4 Jan 2022 — Regime commences. The Investment Security Unit began receiving notifications, with statutory timelines for assessments and final orders.
Zeph Tech advises investors and strategic buyers on AI, data, and advanced computing deals captured by the Act’s mandatory notification thresholds.