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PROPOSED RULECOMMENTS CLOSED OCTOBER 22, 2026

Part 572; Anthropomorphic Test Devices; Test Device for Human Occupant Restraint 50th Percentile Adult Male Dummy (THOR-50M)

Transportation Department / National Highway Traffic Safety Administration

This document supplements NHTSA's September 2023 notice of proposed rulemaking to amend NHTSA's regulations to include an advanced crash test dummy (the Test Device for Human Occupant Restraint (THOR) 50th percentile adult male) by requesting comment on specifying an additional spine configuration and an alternative to the face foam, and announcing the availability of additional documents.

Published September 22, 2026Document 2026-19370Effective September 22, 2026
Read on FederalRegister.gov ↗Official PDF ↗

What happens next

The comment period closed on October 22, 2026. The agency now reviews the comments. If it goes ahead, it publishes a final rule in the Federal Register that responds to significant comments. We link it here when it appears. See what is open for comment now.

From the Federal Register as of November 3, 2026. Deadlines can change; the official document governs. Not legal advice.

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