49 C.F.R. § 574.9
(b) Each person selling a motor vehicle to first purchasers for purposes other than resale, that is equipped with new tires that were not on the motor vehicle when shipped by the vehicle manufacturer is considered a tire dealer for purposes of this part and shall meet the requirements specified in § 574.8.
(Authority: Secs. 103, 108, 112, 119, 201, Pub. L. 89-563, 80 Stat. 718 (15 U.S.C. 1392, 1397, 1401, 1407, 1421); secs. 102, 103, 104, Pub. L. 93-492, 88 Stat. 1470 (15 U.S.C. 1411-1420); 92 Stat. 2689 (15 U.S.C. 1418); delegation of authority at 49 CFR 1.51)
[44 FR 7964, Feb. 8, 1979]