NV DMV Alcohol and Drug Impairment Laws 2 — Questions and Answers
Question 1: What is the legal blood alcohol concentration (BAC) limit for non-commercial drivers age 21 and older in Nevada?
- 0.05%
- 0.08% (Correct answer)
- 0.10%
- 0.04%
Correct answer: 0.08%
Nevada sets the BAC limit at 0.08% for drivers 21 and older operating non-commercial vehicles.
Question 2: What is the legal BAC limit for commercial vehicle drivers in Nevada?
- 0.08%
- 0.06%
- 0.04% (Correct answer)
- 0.02%
Correct answer: 0.04%
Commercial vehicle drivers in Nevada are held to a stricter BAC limit of 0.04%, half the standard limit.
Question 3: Under Nevada's zero tolerance law, a driver under age 21 is considered DUI if their BAC is at or above:
- 0.08%
- 0.04%
- 0.02% (Correct answer)
- 0.01%
Correct answer: 0.02%
Nevada's zero tolerance law makes it illegal for drivers under 21 to drive with a BAC of 0.02% or higher.
Question 4: Nevada's 'per se' DUI law means:
- You must show visible signs of impairment to be convicted
- A BAC at or above the legal limit is sufficient for conviction regardless of visible impairment (Correct answer)
- Officers must complete field sobriety tests before making an arrest
- Per se laws apply only to commercial drivers
Correct answer: A BAC at or above the legal limit is sufficient for conviction regardless of visible impairment
Under per se DUI law, reaching the BAC limit alone is enough for a conviction without proof of visible impairment.
Question 5: Under Nevada law, a driver can be charged with DUI even when their BAC is below 0.08% if:
- They are driving more than 15 mph over the speed limit
- They are visibly impaired by alcohol or any drug (Correct answer)
- They have a prior DUI conviction within 5 years
- They are driving between midnight and 4 a.m.
Correct answer: They are visibly impaired by alcohol or any drug
Nevada law allows DUI charges when a driver is visibly impaired by alcohol or drugs, even if BAC falls below the per se limit.
Question 6: Which substances, besides alcohol, can result in a DUI charge in Nevada?
- Caffeine in energy drinks
- Prescription or illegal drugs that impair driving ability (Correct answer)
- Nicotine patches
- Herbal supplements
Correct answer: Prescription or illegal drugs that impair driving ability
Nevada's DUI law covers impairment from any substance — including prescription medications and controlled substances — not just alcohol.
Question 7: Which factor does NOT directly determine your blood alcohol concentration (BAC) after drinking?
- Body weight
- Number of drinks consumed
- Color of the alcoholic beverage (Correct answer)
- Rate at which drinks were consumed
Correct answer: Color of the alcoholic beverage
The color of a beverage has no effect on BAC; weight, number of drinks, and drinking pace all directly influence it.
NV DMV Alcohol and Drug Impairment Laws 2
What is the legal blood alcohol concentration (BAC) limit for non-commercial drivers age 21 and older in Nevada?