What is the kingpin to rear axle limit in Maine?

Q: What is the kingpin to rear axle limit in Maine?

45 ft 6 in, measured from the kingpin to the rearmost axle. Trailers 48–53 ft. Measured to the center of the rearmost axle. Overall length 74 ft max off the national network. An older BMV page still lists 43 ft. Source: Maine 29-A §2390.

Axle Balance Tandem hole rules by state Maine

Maine tandem hole rules: 45 ft 6 in kingpin to rear axle

For a 53 ft van, reefer or flatbed with a sliding tandem · Checked October 2026

Limit Maine limits the distance from the kingpin to the rearmost axle to 45 ft 6 in.

Where it applies: Trailers 48–53 ft. Measured to the center of the rearmost axle. Overall length 74 ft max off the national network. An older BMV page still lists 43 ft.

How to read it

Measure from the kingpin to the center of the last axle on the trailer. On a tandem, that is usually about 2 ft farther back than the tandem center, so this rule is tighter than a center-measured rule of the same number.

Source

Maine 29-A §2390. Rules checked October 2026. Laws and enforcement change, so confirm with the state before you rely on this.

Set it in the app

In Axle Balance, open State rules and tap Maine, or plan a route through it. Pro shows which tandem holes are legal for your trailer and warns you before a slide would put you over a state's limit. New to sliding? Read how to slide tandems.

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Know which way to slide before you get back on the scale. Axle Balance is a free calculator made by a trucker. Enter your scale ticket and it tells you which way to slide your tandems and how many holes, plus your fifth wheel. Works offline in the cab.

Open the free calculator

Estimates and general information only, not legal advice. Laws change and enforcement varies. Always confirm on a certified scale and with the state before you rely on it. See the Terms of Use.