2126-AB63 202504 Unified Agenda of Federal Regulatory and Deregulatory Actions 2126 Federal Motor Carrier Safety Administration FMCSA 2100 Department of Transportation DOT Heavy Vehicle Speed Limiters

This document informs the public that FMCSA and NHTSA have jointly decided not to pursue two previously published proposed rules related to speed limiter requirements for commercial motor vehicles due to significant policy and safety concerns, data gaps, and other impacts of the proposed rule.  FMCSA and NHTSA therefore withdraw the Agencies’ September 7, 2016, joint Notice of Proposed Rulemaking Federal Motor Vehicle Safety Standards; Federal Motor Carrier Safety Regulations: Parts and Accessories Necessary for Safe Operation; Speed Limiting Devices.” FMCSA also withdraws its May 4, 2022, Advance Notice of Supplemental Proposed Rulemaking Parts and Accessories Necessary for Safe Operations: Speed Limiting Devices.

]]> Economically Significant Previously Published in The Unified Agenda Completed Actions No No Regulatory 49 CFR 390, 393 49 U.S.C. 31502, 31136, 31301, and delegation of authority at 49 CFR 1 No NPRM 09/07/2016 81 FR 61942 NPRM Comment Period End 11/07/2016 Withdrawn 07/24/2025 90 FR 34822 No No None No No www.regulations.gov www.regulations.gov No No 2127-AK92 Related to 2127 National Highway Traffic Safety Administration NHTSA Joint David Sutula Chief, Vehicle and Roadside Operations Division 2126 Federal Motor Carrier Safety Administration FMCSA 202 366-3273 202 366-4329 david.sutula@dot.gov 1200 New Jersey Avenue SE, Washington DC 20590