MD DMV Alcohol and Drug Impairment Laws 2

Question 1

In Maryland, a driver 21 or older is considered driving under the influence (DUI) per se at what blood alcohol concentration?

Accepted Answer

0.08% or higher

Answer

Maryland law sets the per se DUI threshold at a BAC of 0.08% for drivers 21 and older.

Question 2

At what BAC can a Maryland driver be charged with the lesser offense of driving while impaired (DWI)?

Accepted Answer

0.07%

Answer

A BAC of 0.07% creates a presumption of impairment supporting a DWI charge in Maryland.

Question 3

Under Maryland's zero tolerance law, drivers under 21 violate their license restriction with a BAC of:

Accepted Answer

0.02% or higher

Answer

Drivers under 21 are subject to an alcohol restriction and violate it at a BAC of 0.02% or more.

Question 4

What is the maximum BAC allowed for a driver operating a commercial motor vehicle in Maryland?

Accepted Answer

Under 0.04%

Answer

Commercial drivers are held to a stricter 0.04% BAC limit while operating a commercial vehicle.

Question 5

By driving on Maryland roads, you automatically agree to take a chemical test for alcohol or drugs if lawfully requested. This is called:

Accepted Answer

Implied consent

Answer

Maryland's implied consent law means all drivers have pre-agreed to chemical testing when detained on suspicion of impaired driving.

(MD DMV) Maryland Department of Motor Vehicle Practice Test