S3-1: ''SCHOOL BUS STOP AHEAD'' Sign, Various Sizes & Reflectives

MUTCD S3-1 Sign, SCHOOL BUS STOP AHEAD Sign, available in various sizes and retro-reflectivities.

MUTCD (Manual on Uniform Traffic Control devices (MUTCD) -U.S. department of Transportation Federal Highway Administration (FHWA))

The MUTCD defines a School Zone as a designated roadway segment approaching, adjacent to, and beyond school buildings or grounds, or along which school related activities occur. School Signs are a highly specialized type of Warning Sign used in or near School Zones to alert drivers and pedestrians to school zone traffic policies and other safety concerns.