What type of sign gives notice to road users of laws or regulations?

Regulatory signs are designed to inform road users about specific laws and regulations that must be followed to ensure safety and order on the road. These signs communicate important instructions, such as speed limits, stop restrictions, and other legal requirements. By clearly indicating what is legally required or prohibited, regulatory signs help maintain traffic flow and enhance safety for all users of the roadway.

The nature of regulatory signs distinguishes them from other types like warning signs, which alert drivers to potential hazards or changes in road conditions but do not specify laws. Similarly, guide signs provide information regarding directions, distances, and points of interest, while information signs indicate general information about the area or services; they do not enforce laws. Therefore, the characteristic purpose of regulatory signs is to convey mandatory regulations to road users, making them essential for legal compliance on roadways.