Driving Tests

Montana School Bus Stop Law: When to Stop and the $500 Minimum Fine

informational·how to guide·Published July 12, 2026

When must you stop for a school bus in Montana, and what is the fine?

In Montana, you must stop when a school bus that has stopped to load or unload children turns on its flashing red lights. This applies to drivers from either direction. Stop no closer than about 30 feet from the bus, and wait until the red lights stop flashing. A first offense carries a fine of $500 to $1,000, 50 to 100 hours of community service, or both.

Where the Montana school bus facts come from

The stopping rules, the stop arm rules and the penalties come from Montana Code Annotated 61-8-351, the state law on school buses. The driving advice comes from the Montana Driver Manual of the Motor Vehicle Division. This guide is current as of 2026. Confirm the rules with the Montana Motor Vehicle Division (mvdmt.gov) before you drive.

What each school bus light means in Montana

What each school bus light means in Montana
Bus signal	What you must do
Flashing amber (yellow) lights	The bus is getting ready to stop. Slow to a reasonable speed and be ready to stop.
Flashing red lights	Stop no closer than about 30 feet from the bus, from either direction. Do not go until the red lights stop flashing.
Extended stop arm with red lights	The bus is at a stop where children cross the road. Stay stopped until all red lights stop flashing.

What do the amber lights on a Montana school bus mean?

Amber lights warn you that the bus will stop soon. Bus drivers turn them on about 150 feet before a stop in cities and about 500 feet before a stop in other areas. Slow down and drive carefully, because children may be in the road. Then be ready to stop when the red lights come on. Test yourself on our free question about a school bus that is slowing with yellow lights flashing.

When do you not have to stop for a school bus in Montana?

The bus is on a different roadway of a highway with separate roadways

You need not stop when you meet or pass the bus. Try our free question about a school bus on the other side of a wide median.

You are on a controlled-access highway and the bus is in a loading zone that is part of or next to the highway

You need not stop if pedestrians may not cross the roadway there.

The road has two lanes and no median, and the bus is in the other lane

You must stop. The exception for separate roadways does not apply. See our free question about a bus with red lights on a two-lane road.

Can you pass a stopped school bus on the right in Montana?

No. A driver may not overtake a stopped school bus on its right side. This is a separate offense from not stopping for the red lights. It is a misdemeanor, and the penalty is a fine of up to $1,000, up to 6 months in jail, or both.

How does the school bus stop arm work?

A bus that serves a stop where a child must cross the road must have an extended stop arm. The arm partly blocks the roadway, and children may not cross to or from the bus unless the arm is out. The arm has its own flashing red lights. It must be able to extend at least 54 inches from the bus, at a height of at least 36 inches. Each school bus also shows "SCHOOL BUS" signs on the front and rear, with letters at least 8 inches high.

Montana fines for not stopping for school bus red lights

Montana fines for not stopping for school bus red lights
Offense	Fine	Other penalty (the court can order the fine, this penalty, or both)
First	$500 to $1,000	50 to 100 hours of community service
Second	$1,000 to $2,000	100 to 200 hours of community service
Third or later	$3,000 to $5,000	At least 30 days in jail

How to report a driver who passes a school bus in Montana

A person who sees a violation may make an oral report and also a written report. The report can give the time and approximate place, the license plate number and color, the type of vehicle (car, truck, bus, motorcycle or other) and a description of the driver. A witness may file a written or oral complaint with the county sheriff's office. A peace officer investigates the report and must contact the person who reported within 30 days with an update.

More ways to keep children safe near Montana school buses

Leave extra room behind a school bus as you come to a railroad crossing, because the bus must stop there.
Slow down and watch for children day and night when you drive past a school. Children use playgrounds at all hours.
Know the school zone limit. Limits can be as low as 15 mph, and our guide to Montana speed limits and fines has more.

Key takeaways

Red lights on a stopped bus mean stop no closer than about 30 feet, from either direction, until the lights stop flashing.
Amber (yellow) lights mean slow down and be ready to stop. Never pass a stopped bus on the right.
You need not stop for a bus on a different roadway of a highway with separate roadways, or in a controlled-access loading zone where pedestrians may not cross.
A first offense carries a fine of $500 to $1,000, 50 to 100 hours of community service, or both. A third offense carries $3,000 to $5,000, at least 30 days in jail, or both.
Next step: practice on the free Montana Class D practice test.

Montana school bus law: common questions

Do you have to stop for a school bus with no flashing lights in Montana?

The stop rule applies when a stopped bus flashes its red lights. Bus drivers use red lights only when the bus is stopped on the highway or street to load or unload children. A bus stopped off the roadway and paved shoulder may not use them while the children stay off the road. A school board may also bar the lights at a school-site stop where children do not cross a street.

Do I stop for a school bus on a divided highway in Montana?

Not when the bus is on a different roadway of a highway with separate roadways. The same is true on a controlled-access highway when the bus is in a loading zone where pedestrians may not cross. On a two-lane road with no median, a bus in the opposite lane with red lights flashing means you must stop.

Is passing a school bus a misdemeanor in Montana?

Yes. Three school bus offenses are misdemeanors in Montana: not stopping for the red lights, passing a stopped bus on the right, and contact with a bus at a stop-arm stop. For not stopping, a first offense brings a fine of $500 to $1,000, 50 to 100 hours of community service, or both. A third offense can bring at least 30 days in jail.

Can I drive past a school bus when the children have crossed the road?

No. Montana law says you may not go past the bus until it stops flashing its red lights. The lights tell you when to go, not the children and not the movement of the bus. Stay stopped no closer than about 30 feet from the bus until the red lights go off, then drive on carefully.

What happens if I hit the stop arm of a school bus in Montana?

Contact with any part of a school bus stopped with its stop arm, including the stop arm or a school child within 30 feet of the bus, is a misdemeanor. It carries the same penalties as not stopping for the red lights: for a first offense, a fine of $500 to $1,000, 50 to 100 hours of community service, or both.