Texas Alcoholic Beverage Code - ALCO BEV § 106.03. Sale to Minors

(a) A person commits an offense if with criminal negligence he sells an alcoholic beverage to a minor.

(b) A person who sells a minor an alcoholic beverage does not commit an offense if the minor falsely represents himself to be 21 years old or older by displaying an apparently valid proof of identification that contains a physical description and photograph consistent with the minor's appearance, purports to establish that the minor is 21 years of age or older, and was issued by a governmental agency. The proof of identification may include a driver's license or identification card issued by the Department of Public Safety, a passport, or a military identification card.

(c) An offense under this section is a Class A misdemeanor.

(d) Subsection (b) does not apply to a person who accesses electronically readable information under Section 109.61 that identifies a driver's license or identification certificate as invalid.