About Safety Line is a reference tool that answers questions about safety guidance for physical and ambient AI. It uses only eight public documents from NIST, NHTSA, the FDA, OSHA and the UK government. See the documents.

What counts as a safety-related control, and when must a human confirm before a system acts?

Ask a question like this one. Every claim in the answer links to the page it came from. When the documents do not cover something, it says so.

The documents

2023Artificial Intelligence Risk Management Framework (AI RMF 1.0), NIST AI 100-1National Institute of Standards and Technology (NIST). Public domain (U.S. Government work).
2024Artificial Intelligence Risk Management Framework: Generative Artificial Intelligence Profile, NIST AI 600-1National Institute of Standards and Technology (NIST). Public domain (U.S. Government work).
2026International AI Safety Report 2026UK Department for Science, Innovation and Technology (DSIT), research series DSIT 2026/001. Open Government Licence v3.0.
2013Visual-Manual NHTSA Driver Distraction Guidelines for In-Vehicle Electronic Devices (78 FR 24818, Docket NHTSA-2010-0053)National Highway Traffic Safety Administration (NHTSA), published in the Federal Register. Public domain (U.S. Government work).
2018Human Factors Design Guidance for Level 2 and Level 3 Automated Driving Concepts (DOT HS 812 555)National Highway Traffic Safety Administration (NHTSA); prepared by Battelle Memorial Institute. License unclear (contractor-written, no copyright notice).
2025Artificial Intelligence-Enabled Device Software Functions: Lifecycle Management and Marketing Submission Recommendations (Draft Guidance, Docket FDA-2024-D-4488)U.S. Food and Drug Administration (FDA). Public domain (U.S. Government work). Draft guidance.
2026Applying Human Factors and Usability Engineering to Medical Devices (Docket FDA-2011-D-0469)U.S. Food and Drug Administration (FDA). Public domain (U.S. Government work).
2021OSHA Technical Manual, Section IV, Chapter 4: Industrial Robot Systems and Industrial Robot System SafetyOccupational Safety and Health Administration (OSHA), U.S. Department of Labor. Public domain (U.S. Government work).

Contains public sector information licensed under the Open Government Licence v3.0. Page numbers in citations count pages of the PDF file, which can differ from the number printed on the page.

Answers come only from the listed public documents. Not legal, medical, or engineering advice.