Final answer:
Under the National Minimum Drinking Age Act of 1984, a first DUI charge for someone under 21 will result in their driving privileges being revoked for a certain period of time.
Step-by-step explanation:
Under the National Minimum Drinking Age Act of 1984, a person under 21 years old who gets a first DUI (Driving Under the Influence) charge will have their driving privileges revoked for a certain period of time. The specific length of the revocation varies from state to state, but it is usually a minimum of several months to a year. In addition to the revocation, the individual may also face fines, probation, mandatory alcohol education programs, and other penalties depending on the state's laws.