23 C.F.R. § 1210.3
Definitions.
Cite as 23 C.F.R. § 1210.3 (2026)
As used in this part:
(a)
Alcohol concentration
means either grams of alcohol per 100 milliliters of blood or grams of alcohol per 210 liters of breath.
(b)
BAC
means either blood or breath alcohol concentration.
(c)
Operating a motor vehicle
means driving or being in actual physical control of a motor vehicle.