Lighting and loads — Missouri Permit Test

Lighting and loads on the Missouri permit test — 9 rules, each with the reason behind it and a question on it while it is fresh.

The rules

Your vehicle must have a white light shining on the rear license plate so the plate can be seen from 50 feet.

Fifty feet is close, which is the point: the plate only has to be readable from behind.

Your vehicle must have a white light shining on the rear license plate so the plate can be seen from 50 feet.

Missouri Driver Guide, p.85

If a load overhangs the rear by more than five feet, the end of the projection must carry a red flag or cloth at least 16 inches square during the day.

Five feet of unseen load is the length of a person standing behind your car.

You need special equipment if something in your vehicle overhangs the rear by more than five feet.

Missouri Driver Guide, p.85

From half an hour after sunset until half an hour before sunrise, the end of a rear projection must carry a red light.

A flag is invisible after dark. The light is what replaces it.

The end of the projection must have a red light from ½ hour after sunset until ½ hour before sunrise.

Missouri Driver Guide, p.85

When towing another vehicle, your towline must keep the vehicles within 15 feet of each other.

Fifteen feet is close enough that other drivers read the pair as one unit.

your towline must keep the vehicles within 15 feet of each other

Missouri Driver Guide, p.85

From half an hour after sunset until half an hour before sunrise, both vehicles in a tow must have lights on.

The towed car has no driver and no engine, and it still has to be visible.

From ½ hour after sunset until ½ hour before sunrise, both vehicles must have lights on.

Missouri Driver Guide, p.85

From sunset to half an hour before sunrise, any vehicle moving 25 mph or slower must display a slow moving vehicle sign on the rear, near the middle and four feet or more above the road.

Height and position are specified because a sign at bumper level is hidden by the car in front of you.

The sign must be on the rear of the vehicle, near the middle, and four feet or more above the road.

Missouri Driver Guide, p.85

A slow moving vehicle sign must be clean and reflective.

A dirty sign does not reflect, and at night reflection is the whole of what it does.

The sign must be clean and reflective.

Missouri Driver Guide, p.85

Your vehicle may have studded snow tires only from November 1 to April 1.

Studs chew up the road surface, so the state allows them only through the months that need them.

Your vehicle may have studded snow tires only from November 1 to April 1.

Missouri Driver Guide, p.85

Tinting or sun-screening material is permitted on the side and rear windows, with front door windows at no more than 65 percent light blockage.

The front doors are where an officer looks in and where you look out at an intersection.

Tinting or sun-screening material is permitted on the side and rear windows (front door windows at no more than 65% light blockage).

Missouri Driver Guide, p.85

On the test

From how far must a Missouri rear license plate be visible under its light?

50 feet. Fifty feet is close, which is the point: the plate only has to be readable from behind. Missouri Driver Guide, p.85: “Your vehicle must have a white light shining on the rear license plate so the plate can be seen from 50 feet.”

How this works

Most practice tests hand you a bank of questions and leave the manual somewhere else. This one puts them together.

You read one law and the reason behind it, then answer a question on that law while it is still fresh. Get it right and you move on; get it wrong and you have found the gap while it is cheap to fix, not on the morning of the exam.

Learning one rule at a time, and proving it immediately, is what turns a manual you skimmed into something you actually know — and it makes studying feel like getting somewhere rather than like waiting to find out.

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All Missouri permit topics

Where these come from

Every rule here is checked against Missouri Driver Guide, published by the Missouri Department of Revenue, and against the state code itself. Last checked 2026-09-16.