Texas Transportation Code - TRANSP § 521.127. Use of Diacritical Marks

(a) In this section, “diacritical mark” means a mark used in Latin script to change the sound of a letter to which it is added or used to distinguish the meaning of the word in which the letter appears.  The term includes accents, tildes, graves, umlauts, and cedillas.

(b) The department shall ensure that an original or renewal driver's license or personal identification certificate issued under this chapter properly records any diacritical mark used in a person's name.