Driver's license
The minimum driving age varies between 16 and 18 years of age in different States and Territories. After the minimum age, a graduated licensing scheme operates, with state variations.
Alcohol laws of Pennsylvania
Driving, operating, or being in actual physical control of the movement of vehicle under the influence is a crime in Pennsylvania, and is subject to a great number of regulations outside of the state's alcohol laws. Pennsylvania's maximum blood alcohol level for driving is 0.08% for persons at or over the age of 21 (with suspension of license on the first offense), and 0.04% for a person operating a commercial vehicle (0.02% for a school bus) with revoking of the license on the first offense. For those under 21, Pennsylvania follows a "zero tolerance" policy, meaning that any BAC over 0.02% is enough to warrant a DUI (the small allowance is for certain medicinal purposes such as some cold medicines that contain alcohol). Penalties include fines, license suspension, and possible imprisonment.