What is implied consent in the context of driving under the influence?

• A. Consent to chemical testing must be explicit and in writing.
• B. By operating a vehicle on public roads, a driver consents to chemical testing; refusal can have penalties or consequences.
• C. Consent is not required for testing.
• D. Consent applies only to blood tests.

Answer: (B)

Implied consent means that by operating a vehicle on public roads, a driver has given permission to undergo chemical testing for alcohol or drugs when law enforcement suspects impairment. Refusing the test can trigger penalties such as license suspension or other administrative consequences, even if the driver is not convicted of a crime. The testing can be breath, blood, or urine, and the consent does not require explicit, written approval upfront.