Parts and Accessories Necessary for Safe Operation; Tire Load Markings

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

Notice of proposed rulemaking (NPRM).

FMCSA proposes to revise the requirements for tires on commercial motor vehicles (CMVs) to clarify that the Federal Motor Carrier Safety Regulations (FMCSRs) do not require tire load restriction markings on their sidewalls. This change would eliminate confusion and clarify the scope of FMCSA's authority regarding the requirements for tires in the FMCSRs.

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

You may submit comments identified by Docket Number FMCSA-2025-0123 using any of the following methods:

• Federal eRulemaking Portal: Go to https://www.regulations.gov/​docket/​FMCSA-2025-0123/​document. Follow the online instructions for submitting comments. ( printed page 22950)
• 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.