Data / Federal rules / 2025-13928
Federal Motor Vehicle Safety Standards; Federal Motor Carrier Safety Regulations; Parts and Accessories Necessary for Safe Operation; Speed Limiting Devices; Withdrawal
The National Highway Traffic Safety Administration published this proposed rule in the Federal Register on July 24, 2025.
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What the agency says
FMCSA and NHTSA withdraw the September 7, 2016 joint NPRM that proposed to require that heavy vehicles (those with a gross vehicle weight rating (GVWR) of more than 11,793 kilograms (26,000 pounds)) be equipped with a speed limiting device that is maintained at a set speed. FMCSA also withdraws its May 4, 2022 ANSPRM, which announced FMCSA's intent to proceed with a speed limiter rulemaking. The ANSPRM stated that FMCSA was preparing a supplemental notice of proposed rulemaking (SNPRM) to propose that motor carriers operating commercial motor vehicles (CMVs) in interstate commerce with a gross vehicle weight or GVWR of at least 11,794 kilograms (26,001 pounds), whichever is greater, and that are equipped with an engine control unit (ECU) capable of governing the maximum speed, be required to limit the CMV to a speed to be determined by the rulemaking and to maintain that ECU setting for the service life of the vehicle. In light of significant policy and safety concerns and continued data gaps that create considerable uncertainty about the estimated costs, benefits, and other impacts of the proposed rule, FMCSA and NHTSA have decided to withdraw the proposal.
Key facts
- Document number
- 2025-13928
- Type
- Proposed rule
- Action
- Notice of proposed rulemaking (NPRM); advance notice of supplemental proposed rulemaking (ANSPRM); withdrawal
- Agency
- Transportation Department; Federal Motor Carrier Safety Administration; National Highway Traffic Safety Administration
- Published
- July 24, 2025
- Dates
- FMCSA and NHTSA withdraw the NPRM published September 7, 2016, at 81 FR 61942 as of July 24, 2025. FMCSA withdraws the ANSPRM published May 4, 2022, at 87 FR 26317 as of July 24, 2025.
- Docket
- Docket No. FMCSA-2014-0083; Docket No. FMCSA-2022-0004; Docket No. NHTSA-2016-0087
- Regulation ID (RIN)
- 2126-AB63; 2127-AK92
- Code of Federal Regulations
- 49 CFR 393; 49 CFR 571
- Significant
- Yes, under Executive Order 12866
- Pages
- 5
Other documents from the National Highway Traffic Safety Administration
Everything from the National Highway Traffic Safety Administration · Published in July 2025
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