Massachusetts Lift Laws and Vehicle Equipment Laws

The Massachusetts street legal laws are covered under the Massachusetts General Laws (MGL).

Vehicle size in Massachusetts is restricted to a maximum width of 102 inches, a maximum height of 13 feet 6 inches, and a maximum single vehicle length of 45 feet.

All tires on vehicles driven in Massachusetts must be in safe operating condition, without any bulges or exposed cords. There is no minimum tread depth. Tire grooving is not mentioned in the laws.

Massachusetts has no laws related to wheels.

Cars and trucks driven in Massachusetts are required to have functional brakes. A secondary, mechanical, parking brake is also required.

Massachusetts does not have any steering system laws.

In general, vehicles under 10,000 GVWR have a suspension lift limit of 2 inches in Massachusetts.

4×4 vehicles have a maximum suspension lift limit based on this equation: Lift Limit = (wheelbase x wheel track) / 2200

At this time, there are no vehicle frame height limitations in Massachusetts.

There are no bumper height restrictions in Massachusetts.

Massachusetts law requires all vehicles to be equipped with guards (mud flaps) to prevent spray or splash.

At least 2 headlights and 2 tail lights are required in Massachusetts. It is unclear if auxiliary lighting is allowed.

Massachusetts’ laws make no reference to whether or not windshields and windshield wipers are required, however, they do appear to be required to pass the Massachusetts vehicle safety inspection.

In Massachusetts, vehicles are required to be equipped with mufflers. Exhaust cutouts are not allowed to be installed.

It is unclear whether or not Massachusetts has any engine swap or engine performance modification rules.

Massachusetts requires emissions testing and general vehicle inspections.