23 CFR 1210.3 - Definitions.
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.
Title 23 published on 2014-04-01.
No entries appear in the Federal Register after this date, for 23 CFR Part 1210.