This part applies to manufacturers, brand name owners, retreaders, distributors, and dealers of new and retreaded tires, and new non-pneumatic tires and non-pneumatic tire assemblies for use on motor vehicles manufactured after 1948 and to manufacturers and dealers of motor vehicles manufactured after 1948. However, it does not apply to persons who retread tires solely for their own use.
49 C.F.R. §574.4