Final answer:
Drivers under 21 years of age can be arrested for a BAC level of 0.02 due to Zero Tolerance laws enforced under the National Minimum Drinking Age Act of 1984, with most states setting the limit at 0.02% BAC.
Step-by-step explanation:
Yes, drivers under 21 years of age can be arrested for a BAC level of 0.02. The National Minimum Drinking Age Act of 1984 requires states to enforce laws that prohibit those under the age of 21 from purchasing and publicly possessing alcoholic beverages. Due to the Zero Tolerance Law, which is aimed at preventing underage drinking and driving, any detectable amount of alcohol in individuals under the age of 21 is grounds for a DUI arrest. In the United States, most states have set the Zero Tolerance limit at a BAC of 0.02% to accommodate for potential errors in BAC testing devices. Therefore, if a person under 21 years of age is found driving with a BAC level at or above 0.02%, they can face penalties including arrest.