Under Colorado law, what Blood Alcohol Concentration (BAC) establishes driving under the influence (DUI per se) for adult drivers?

A BAC of 0.08 percent or higher.

A BAC of 0.05 percent or higher to avoid obstructing the path of oncoming vehicles.

A BAC of 0.10 percent or higher.

A BAC of 0.02 percent or higher.

What is the legal definition and blood alcohol threshold for Driving While Ability is Impaired (DWAI) in Colorado?

Impaired to the slightest degree, typically indicated by a BAC of 0.05 percent up to 0.08 percent.

Completely incapable of steering, requiring a BAC of at least 0.12 percent.

Impaired to the slightest degree, typically indicated by a BAC of 0.05 percent up to 0.08 percent.

A temporary moving infraction that carries zero penalty points on a driving record.

Impairment caused exclusively by prescription medications with zero measurable alcohol until the roadway ahead is completely clear of traffic.

Colorado DMV Permit/Topics/Impaired Driving, BAC Limits & Implied Consent

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Alcohol and drugs1 of 2
Under Colorado law, what Blood Alcohol Concentration (BAC) establishes driving under the influence (DUI per se) for adult drivers?
The answer
Answer: A. Driving with a blood alcohol concentration of 0.08 percent or higher constitutes driving under the influence per se for adult motorists age twenty-one or older. A first DUI conviction carries a nine-month driver license revocation, a fine of six hundred to one thousand dollars, and mandatory public service. Impaired drivers face mandatory jail sentences of five days up to one full year.
Source: CO Driver Handbook — Driving Under the Influence: DUI Per Se (p. 4)
Alcohol and drugs2 of 2
What is the legal definition and blood alcohol threshold for Driving While Ability is Impaired (DWAI) in Colorado?
The answer
Answer: B. Driving While Ability Impaired is legally defined as operating a vehicle when alcohol or drugs have impaired your ability to the slightest degree. A blood alcohol concentration of 0.05 percent up to 0.08 percent establishes the statutory threshold for a DWAI charge in Colorado. A first DWAI conviction results in eight points assessed against your license, fines up to five hundred dollars, and required public service.
Source: CO Driver Handbook — Driving Under the Influence: DWAI Definition (p. 4)

Quick answers on Impaired Driving, BAC Limits & Implied Consent

How many Impaired Driving, BAC Limits & Implied Consent questions are on the Colorado DMV Permit?

QuizCram covers 36 practice questions in the Impaired Driving, BAC Limits & Implied Consent domain, mapped directly to the official examination blueprint.

What is the passing score for the Colorado DMV Permit?

The benchmark score is 80% (QuizCram 25-question practice sets · official question count and pass mark not published in the handbook).

Are these Impaired Driving, BAC Limits & Implied Consent questions written from official sources?

Yes. All questions on QuizCram are written against official handbooks and blueprint specifications with legal citations.