The degree of uniformity among State laws requiring drivers to stop for school buses receiving or discharging children is not such that drivers could reasonably be expected to know these laws. Because of the wide variation of State laws and the inherent vulnerability of school children and of any vehicle stopping on a highway, there can be no justification for the position that everyone is presumed to know the law and that nonuniformity is therefore not significant. School bus regulation must obtain a degree of conformity in basic requrements so that all drivers know what obligations they have when meeting or overtaking a school bus. Uniform regulations would promote the safety of passengers in the bus, pedestrians near the bus, and of drivers approaching school buses in all States. Thus, the author advocates that each State should amend its laws to conform with the school bus stopping provisions in the latest edition of the Uniform Vehicle Code. (Author/MLF)