Texas Penal Code Sec. 49.01. (2) “Intoxicated” means:
(A) not having the normal use of mental or physical faculties by reason of the introduction of alcohol, a controlled substance, a drug, a dangerous drug, a combination of two or more of those substances, or any other substance into the body;
or
(B) having an alcohol concentration of 0.08 or more.
This means that if you have a Blood Alcohol Concentration (BAC) of less than .08, but you are not in the normal use of mental or physical faculties due to alcohol, you may still be considered to be intoxicated.





