Key points
Posted limits only say you cannot go faster; slow down when road or weather makes them unsafe.
Source: Handbook p. 8-7
“They only say you cannot go faster than the speed shown. If road and weather conditions make the posted speed unsafe, you must slow down.”
Maine Driver's License Manual, Handbook p. 8-7The limit is 45 mph outside business, residential or built up areas unless posted.
Source: Handbook p. 8-7
“45 Miles per hour outside any business or residential or built-up area of Maine.”
Maine Driver's License Manual, Handbook p. 8-7The limit is 25 mph in a business district, residential district or built up area.
Source: Handbook p. 8-7
“25 Miles per hour in a business district, residential district, or built-up area of the state.”
Maine Driver's License Manual, Handbook p. 8-7The limit is 15 mph when passing a school during recess or school opening and closing hours.
Source: Handbook p. 8-7
“15 Miles per hour when passing a school during recess, or when children are going to or from school during the school's opening or closing hours.”
Maine Driver's License Manual, Handbook p. 8-7Speeding in a school zone brings twice the usual fine.
Source: Handbook p. 8-8
“A fine twice that of the usual fine is imposed for exceeding the posted speed limit in a school zone.”
Maine Driver's License Manual, Handbook p. 8-8It is illegal to exceed the posted limit, and racing and reckless driving are not allowed.
Source: Handbook p. 8-8
“It is illegal to exceed the posted speed limit. Racing on the highway and driving recklessly are not allowed.”
Maine Driver's License Manual, Handbook p. 8-8You must not drive so slowly that you interfere with traffic, except when slower speed is needed for safety.
Source: Handbook p. 8-8
“Maine law also says you must not drive so slowly that you interfere with the normal and reasonable movement of traffic except where reduced speed is necessary for safety.”
Maine Driver's License Manual, Handbook p. 8-8Farm tractors and roadway maintenance vehicles usually go 25 mph or less.
Source: Handbook p. 8-10
“Farm tractors, animal-drawn carts and roadway maintenance vehicles usually go 25 mph or less.”
Maine Driver's License Manual, Handbook p. 8-10
Numbers to know
| Number | What it means | Manual |
|---|---|---|
| 45 mph | outside business, residential or built up areas | Handbook p. 8-7 |
| 25 mph | business or residential districts and built up areas | Handbook p. 8-7 |
| 15 mph | passing a school at recess or opening and closing hours | Handbook p. 8-7 |
| 25 mph | usual top speed of farm tractors and maintenance vehicles | Handbook p. 8-10 |
Recognize these signs
Speed limit School speed limit
3 questions from the Maine practice test
1. What maximum speed applies when passing a school during recess in Maine, unless a different limit is posted?
- 35 miles per hour
- 25 miles per hour
- 15 miles per hour
- 45 miles per hour
Show answer
15 miles per hour. Maine sets a 15 mile per hour maximum when a driver passes a school during recess, or when children are traveling to or from school during opening or closing hours. The 25 mile per hour figure belongs to business, residential, and built-up areas, so it is the most plausible but incorrect substitute here. A posted limit still controls when one is lower or otherwise specific. The practical cue is the school setting and the timing: slow to 15 mph during recess or the listed arrival and departure periods, and use extreme care when the exact period is uncertain.
2. What does Maine law prohibit a driver from doing when a posted speed limit is in effect?
- Slowing for a roadway hazard
- Driving below the posted limit in rain
- Choosing a speed below the number
- Exceeding the posted limit
Show answer
Exceeding the posted limit. Maine law makes it illegal to exceed the posted speed limit. The sign's number is a maximum, so a driver may need to travel more slowly when weather, traffic, visibility, or pavement conditions make that speed unsafe. A driver is not required to reach the displayed number, and a clear road does not authorize going above it. Distinguish this rule from Maine's default limits, which apply only when no different limit is posted. The practical cue is simple: read the sign as a ceiling, then adjust downward when conditions require.
3. What do posted speed limits tell a Maine driver?
- The speed every driver must maintain
- The fastest lawful speed under ideal conditions
- A recommended speed for poor weather
- The minimum speed on every road
Show answer
The fastest lawful speed under ideal conditions. A posted speed limit is a maximum, not a required travel speed. Maine explains that the displayed number tells drivers they cannot go faster than that speed, while road and weather conditions can require slowing down. The phrase does not promise that the roadway is safe at the listed number. A driver who reduces speed for rain, ice, traffic, or limited visibility is following the safety principle rather than violating the sign. Use the number as an upper boundary and choose your speed from current conditions.
Practice this topic
Lock it in with speed limits questions from the free Maine practice test. Every answer comes with a plain English explanation.
Source: the Maine Driver's License Manual, Section 8: Managing Time and Space. This lesson is a plain English summary, not the law itself; where it differs, the manual and the statute govern. Last checked 2026-09-27.
