Texas Transportation Code - TRANSP § 681.0031. Applicant's Identification

(1) driver's license number or the number of a personal identification card issued to the applicant under Chapter 521;

(2) military identification number; or

(3) driver's license number of a driver's license issued by another state or country if the applicant is not a resident of this state and is seeking medical treatment in this state.

(1) the county number assigned by the comptroller to the county issuing the placard;

(2) the first four digits of the applicant's driver's license number, personal identification card number, or military identification number; and

(3) the applicant's initials.