According to Transportation Article 21-706, if a school vehicle has stopped on a roadway and is operating the alternately flashing red lights, the driver of any other vehicle meeting or overtaking the school vehicle shall stop at least 20 feet from the rear or front of the school vehicle (depending on the direction in which the vehicle approaches the school vehicle). They may not proceed until the school vehicle resumes motion or the alternately flashing red lights are deactivated.
A person convicted of a violation of this section is subject to a fine not exceeding $1,000.