§ 55-10-401. Driving under the influence prohibited -- Alcohol concentration in blood or breath.

TN Code § 55-10-401 (2019) (N/A)
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(1) Under the influence of any intoxicant, marijuana, controlled substance, controlled substance analogue, drug, substance affecting the central nervous system, or combination thereof that impairs the driver's ability to safely operate a motor vehicle by depriving the driver of the clearness of mind and control of oneself that the driver would otherwise possess;

(2) The alcohol concentration in the person's blood or breath is eight-hundredths of one percent (0.08%) or more; or

(3) With a blood alcohol concentration of four-hundredths of one percent (0.04%) or more and the vehicle is a commercial motor vehicle as defined in § 55-50-102.