When coming within how many feet of the nearest rail of the railroad, vehicles carrying dangerous materials must reduce speed?

Vehicles carrying dangerous materials must reduce speed when coming within 200 feet of the nearest rail of a railroad. This regulation is in place to ensure the safety of both the vehicle occupants and those around them, especially in situations where hazardous materials are involved. Reducing speed allows the driver to have better control of the vehicle and respond appropriately to any potential hazards, such as a train crossing or an unexpected situation on or near the tracks.

The 200 feet distance is significant enough to provide ample reaction time for drivers, recognizing that the presence of dangerous materials necessitates extra caution. This precautionary measure helps prevent accidents and enhances the overall safety of everyone on the road and near railroad crossings.