Criminal Offenses - As enacted, decreases from 0.20 to 0.15 percent the minimum weight of alcohol concentration in a defendant's blood or breath as an element of the offense of aggravated vehicular assault and in a defendant's blood as an element of the offense of aggravated vehicular homicide. - Amends TCA Title 39, Chapter 13.

HB 190 lowers the blood alcohol concentration (BAC) threshold for aggravated vehicular assault and homicide charges in Tennessee. It amends Tennessee Code Annotated Sections 39-13-115(b)(2)(A) and 39-13-218(a)(3) to reduce the minimum BAC level from 0.20% to 0.15% for these offenses. This change directly affects defendants charged with aggravated vehicular assault (requiring 0.15% BAC in blood/breath) or homicide (requiring 0.15% BAC in blood). The bill makes it easier for prosecutors to pursue aggravated charges at a lower blood alcohol level than previously required. The law takes effect July 1, 2025.