75 Pa.C.S. § 3101: Application of part.

(a) General rule.--Except as provided in subsection (b), the provisions of this part relating to the operation of vehicles refer exclusively to the operation of vehicles upon highways except where a different place is specifically referred to in a particular provision.

(b) Serious traffic offenses.--The provisions of section 3345 (relating to meeting or overtaking school bus), Subchapter B of Chapter 37 (relating to serious traffic offenses) and Chapter 38 (relating to driving after imbibing alcohol or utilizing drugs) shall apply upon highways and trafficways throughout this Commonwealth.