The Algorithmic Transparency Recording Standard — the UK's Mandatory Public Register of Government AI Tools

The Algorithmic Transparency Recording Standard (ATRS) is a template the UK Government Digital Service introduced in November 2021 for public bodies to record why and how they use an algorithmic tool: its purpose, human oversight, data used, and risk mitigations. It was designed after early transparency pilots to give a consistent public format rather than ad-hoc disclosures.

In its February 2024 response to the AI White Paper, the government made the ATRS mandatory across all central government departments, later publishing a formal scope-and-exemptions policy in December 2024 covering arm's-length bodies that deliver public or front-line services. A refreshed version 4 of the standard, with clearer guidance and template structure, was released in May 2025.

Published records grew from 7 at launch to roughly 23 by December 2024, then to 59 by May 2025 (53 added in the preceding twelve months) — including entries such as Network Rail's public-inquiry chatbot, Oak National Academy's 'Aila' AI lesson-planning assistant, the Home Office's CARS(V) visa-application router, and NICE's internal 'NORMA' guidance-search tool.

Independent legal analysis (Burges Salmon) and the National Audit Office have both flagged that considerably more AI tools are in live use across government than appear in the register, so the mandate's reach on paper is running ahead of actual compliance — a genuine, acknowledged gap rather than a finished system.

Read the full analysis: https://dataingovernment.blog.gov.uk/2025/05/08/making-the-algorithmic-transparency-recording-standard-atrs-mandatory-across-government/