Part 572; Anthropomorphic Test Devices; Test Device for Human Occupant Restraint 50th Percentile Adult Male Dummy (THOR-50M); Extension of Comment Period
NHTSA extends public comment period by 30 days (to Nov 21, 2026) for a proposed rule on adding an advanced crash test dummy to federal safety testing standards.
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NHTSA extends public comment period by 30 days (to Nov 21, 2026) for a proposed rule on adding an advanced crash test dummy to federal safety testing standards.
Why it matters
The National Highway Traffic Safety Administration (NHTSA) is giving the public an extra 30 days to comment on a proposed rule about a more advanced crash test dummy called the THOR-50M. This extension was granted at the request of the Alliance for Automotive Innovation, which represents automakers. The new comment deadline is November 21, 2026, pushed back from the original October 22, 2026 deadline.
Who it affects
Transportation Department, National Highway Traffic Safety Administration
What happens next
Current
Signed
Published Oct 23, 2026.
Next
Takes effect
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- ProposedPublished Oct 23, 2026
- SignedStatus: Signed · Published Oct 23, 2026
- In effectNo effective date on record yet.
- ChallengedNo challenge record stored beyond status. See the Federal Register source for litigation history.
- ClosedNo closed-state date on record yet.
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DEEPER READ
This action extends the public comment period for a Supplemental Notice of Proposed Rulemaking (SNPRM) that NHTSA originally published on September 22, 2026. The SNPRM itself builds on an earlier September 2023 proposed rulemaking that sought to add the THOR-50M dummy to federal vehicle safety testing regulations. The THOR-50M is described as an advanced crash test dummy designed to better represent how a 50th percentile adult male experiences injury in a vehicle crash, potentially improving the accuracy of occupant restraint system evaluations. The SNPRM specifically requests public comment on two additional technical topics: a proposed alternative spine configuration for the dummy and an alternative material for the face foam component. It also announces the availability of additional supporting documents for public review. These technical details matter because they affect how consistently and accurately the dummy performs during federally mandated crash tests. The extension was requested by the Alliance for Automotive Innovation, a major industry trade group representing automobile manufacturers. NHTSA granted the 30-day extension, moving the comment deadline from October 22, 2026, to November 21, 2026. This type of extension is a routine procedural step that allows stakeholders more time to review technical materials and submit informed comments. The parties most directly affected by this rulemaking include vehicle manufacturers, crash test equipment suppliers, automotive safety researchers, and ultimately consumers who benefit from improved vehicle safety standards. If finalized, incorporating the THOR-50M into federal regulations could influence how automakers design and test occupant restraint systems such as airbags and seatbelts. No final rule has been issued. This action concerns only a procedural extension of the comment period during the rulemaking process. The legal basis and broader regulatory framework are not fully detailed in the supplied record.
AS PUBLISHED
In response to a request from the Alliance for Automotive Innovation (Auto Innovators), NHTSA is announcing a 30-day extension of the public comment period for the Supplemental Notice of Proposed Rulemaking (SNPRM) published on September 22, 2026. The SNPRM 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. The comment period for the SNPRM was originally scheduled to end on October 22, 2026. It will now end on November 21, 2026.
THE SAGE'S PERSPECTIVE
AI analysis
This action is strictly procedural, extending a public comment deadline by 30 days at the request of an industry group. The underlying proposed rule, if finalized, could affect how vehicles are crash-tested and how restraint systems are evaluated, which has long-term safety implications for vehicle design. No regulatory changes are made by this extension itself.
Sources
- Federal Register entryPrimary record
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