37 Tex. Admin. Code § 15.23
The applicant's full name is required on all applications for driver's license and identification certificates.
(1) A married woman may choose the surname she wishes to use, either her maiden name or she may adopt the surname of her husband or the surname of a previous husband (Attorney General's Opinion H-432). However, no name will be used that has not been documented. If she elects not to adopt her husband's surname, she will simply list her name as if unmarried on the application. If she chooses to adopt her husband's surname, the application should list married name, first name, and middle name, or the maiden name may be used in lieu of middle name at the option of the applicant. The first name of the applicant must be used as the first name on the application and on the transaction card, even if the applicant normally uses a middle name as the given name. Middle names will not be substituted for first names. Examples: Mary Ellen Smith marries Brown; she may list her name as Brown, Mary Ellen or Brown, Mary Smith. In all cases, three full names will be used, unless the applicant does not have three names, including the maiden name.
Source Note:The provisions of this §15.23 adopted to be effective January 1, 1976; amended to be effective December 1, 1986, 11 TexReg 4714; amended to be effective October 24, 1996, 21 TexReg 10217; amended to be effective February 24, 1999, 24 TexReg 1192.