Parts and Accessories Necessary for Safe Operation; Brakes on Portable Conveyors

Federal Motor Carrier Safety Administration (FMCSA), Department of Transportation (DOT).

Notice of proposed rulemaking (NPRM).

FMCSA proposes to add an exception for portable conveyors used in aggregate industry operations, and manufactured before 2010, from the requirements that each commercial motor vehicle (CMV) be equipped with brakes acting on all wheels, provided certain conditions are satisfied. This proposal is in response to a petition for rulemaking from the Michigan Aggregates Association (MAA). The proposed change would provide relief from a regulatory requirement for certain portable conveyors without impacting safety.

Comments must be received on or before July 29, 2025.

You may submit comments identified by Docket Number FMCSA-2025-0119 using any of the following methods:

• Federal eRulemaking Portal: Go to https://www.regulations.gov/​docket/​FMCSA-2025-0119/​document. Follow the online instructions for submitting comments.
• Mail: Dockets Operations, U.S. Department of Transportation, 1200 New Jersey Avenue SE, West Building, Ground Floor, Washington, DC 20590-0001.
• Hand Delivery or Courier: Dockets Operations, U.S. Department of Transportation, 1200 New Jersey Avenue SE, West Building, Ground Floor, Washington, DC 20590-0001, between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. To be sure someone is there to help you, please call (202) 366-9317 or (202) 366-9826 before visiting Dockets Operations.
• Fax: (202) 493-2251.