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

**Action Urgency Score:** 55/100

| Field | Value |
|---|---|
| Agency | Transportation Department; National Highway Traffic Safety Administration |
| Type | Proposed rule |
| Action | Extension of comment period. |
| Published | 2026-10-23 |
| Comments close | 2026-11-21 |
| Significant | No |
| CFR parts | 49 CFR 572 |
| Summary | 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 a |
| Document number | 2026-21730 |

## Why this score
- Comment deadline within 30 days.

Source: Federal Register API (Office of the Federal Register) (https://www.federalregister.gov/documents/2026/10/23/2026-21730/part-572-anthropomorphic-test-devices-test-device-for-human-occupant-restraint-50th-percentile-adult). Last refreshed: 2026-11-05T14:36:47.995Z.
Data from the Federal Register API; the published Federal Register document is authoritative. Informational only, not legal advice.