Texas Statutes
Subchapter I. Driving While Having Alcohol, Controlled Substance, or Drug in System
Section 522.101. Driving While Having Alcohol in System Prohibited

Sec. 522.101. DRIVING WHILE HAVING ALCOHOL IN SYSTEM PROHIBITED. (a) Notwithstanding any other law of this state, a person may not drive a commercial motor vehicle in this state while having a measurable or detectable amount of alcohol in the person's system.
(b) A person who violates Subsection (a) or who refuses to submit to an alcohol test under Section 522.102 shall be placed out of service for 24 hours.
(c) A peace officer may issue an out-of-service order based on probable cause that the person has violated this section. The order must be on a form approved by the department. The peace officer shall submit the order to the department.
Acts 1995, 74th Leg., ch. 165, Sec. 1, eff. Sept. 1, 1995.