Final rule · 2026-03260

Parts and Accessories Necessary for Safe Operation; Tire Load Markings

FMCSA amends the requirements for commercial motor vehicle (CMV) tires to clarify that the Federal Motor Carrier Safety Regulations (FMCSR) do not require tire load restriction markings on the sidewalls of the tires. This change eliminates confusion and clarifies the scope of FMCSA's authority regarding requirements for CMV tires.