AZ HB2084

Establishes a presumption that a driver is under the influence and impaired by marijuana if they have a blood concentration of 2.0 nanograms per milliliter or more of tetrahydrocannabinol within two hours of driving or being in actual physical control of a vehicle.

Allows introduction of evidence regarding tetrahydrocannabinol impairment in DUI trials, similar to existing alcohol impairment presumptions.

Updates terminology throughout DUI statutes from "assure" to "ensure" and standardizes formatting of dollar amounts and references.

Modifies cross-references in DUI sentencing provisions (sections 28-1381, 28-1382, 28-1387) and home detention program statutes for municipal and county jurisdictions to align with new marijuana impairment standards.

Clarifies that courts may order ignition interlock device requirements for DUI convictions not involving intoxicating liquor, including those involving marijuana.