Tex. Transportation Code § 680.002: SALE OF MOTORCYCLE WITHOUT SERIAL NUMBERS.

A person may not sell a motorcycle manufactured after January 1, 1976, unless:

(1) the serial number of the frame and the serial number of the engine are affixed so that they may not be removed without defacing the frame or engine; and

(2) the manufacturer has filed with the department a statement that:

(A) identifies the part to which each number is affixed;

(B) gives the exact dimensions of the part; and

(C) gives the location on the part to which the number is affixed.

Acts 1995, 74th Leg., ch. 165, Sec. 1, eff. Sept. 1, 1995.