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Topic 3 · Section 21

School Zones and School Buses

Children are vulnerable road users, so the law gives them special protection:


🏫 School Zone Speed

  • When entering a posted school zone while school is in session or children are present, the speed limit is often 25 mph or lower if posted.
  • Watch for flashing school zone signs or crossing guards.
  • Even if the sign says “25 mph when children are present,” interpret that broadlyslow down if kids are anywhere nearby.

🛑 Crossing Guards

  • Always obey crossing guards.
  • If a guard is holding a stop sign in the crosswalk:
    • You must stop and wait until the guard and all children have completely cleared the road.
    • Do not inch forward while they are in the crosswalk.

🚌 School Buses

  • If a school bus has flashing red lights and/or a stop sign arm extended, you must stop:
    • Whether you’re behind it or approaching from the opposite direction.
    • Exception: If the bus is on the other side of a divided or multilane highway (two or more lanes in each direction), you do not need to stop.
  • Remain stopped while the red lights are flashing, until the children are safely across the street and the lights stop flashing.
  • Passing a stopped school bus with red lights is illegal and dangerous: you may be fined up to $1,000 and your driving privilege suspended for one year.

⚠️ Yellow Lights on School Buses

  • Flashing yellow lights on a school bus mean it is about to stop.
  • Slow down and prepare to stop, just like a yellow traffic light.

🚗 Dropping Off & Picking Up Kids

  • Watch for double-parked vehicles or children darting out.
  • Drive with extra caution around schools during morning and afternoon pickup times.

🚫 Illegal Passing in School Zones

  • It is illegal to:
    • Overtake a vehicle stopped at a crosswalk in a school zone (or any crosswalk) — they may be stopped for pedestrians.
    • Pass other moving vehicles in some school zones during school hours — this helps prevent confusion and accidents.

Stay alert and patient around schools — children’s safety depends on it.

Check you have it

179 practice questions cover rules of the road: traffic laws in california, each explaining the reasoning behind its answer.

Practise this topic

Source: California Driver's Handbook (DL 600, rev. 6/2025). Edited by Fernando Aguilera. Aprobify is not affiliated with the California DMV.

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