The infraction or offense of speeding in a school zone is committed when the driver of a motor vehicle in a marked school zone exceeds the posted speed limit or exceeds the speed limit that is reasonable and prudent under the circumstances or conditions—conditions such as the road (straight, curved, wet, dry, icy, flat, hilly); the weather (clear, foggy, raining, snowing); the visibility; and the presence of children in a crosswalk, for example.

Laws regarding speeding in a school zone vary from state to state and among cities and towns and are usually located in a state’s statutes and sometimes in local ordinances enacted by cities or towns.

The penalty for speeding in a school zone is usually a fine and demerit points added to the driver’s license or driving record. But the fines and penalties for speeding in a school zone are usually much greater than for a typical speeding ticket or citation.

In Wyoming, the offense of speeding in a school zone is taken seriously due to the heightened risk to children and pedestrians. The state's statutes dictate that drivers must adhere to the posted speed limits within school zones, which are typically lower during school hours when children are present. The specific speed limits and times of enforcement can be found in local ordinances. Additionally, drivers are expected to drive at a speed that is reasonable and prudent given the current conditions, such as road and weather conditions, visibility, and the presence of children. Penalties for speeding in a school zone in Wyoming are more severe than for general speeding offenses. They often include increased fines and additional demerit points on the driver's license. These measures are in place to deter speeding and enhance safety in areas where children are likely to be crossing streets or walking along roadways.