Massachusetts Lift Laws and Vehicle Equipment Laws
Massachusetts has very few vehicle equipment laws, unfortunately, one of those laws restricts suspension lifts to only 2 inches. Keeping that in mind, suspension lift kits are still allowed, as are aftermarket wheels and tires, performance shocks, aftermarket bumpers, and grille guards.
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Code |
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The Massachusetts street legal laws are covered under the Massachusetts General Laws (MGL). |
MGL Ch. 90
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Dimensions |
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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. |
MGL 90-19
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Tires |
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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. |
MGL 90-7K
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Wheels |
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Massachusetts has no laws related to wheels. |
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Brakes |
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Cars and trucks driven in Massachusetts are required to have functional brakes. A secondary, mechanical, parking brake is also required. |
MGL 90-7
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Steering |
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Massachusetts does not have any steering system laws. |
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Suspension |
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In general, vehicles under 10,000 GVWR have a suspension lift limit of 2 inches in Massachusetts.
4x4 vehicles have a maximum suspension lift limit based on this equation:
Lift Limit = (wheelbase x wheel track) / 2200
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MGL 90-7P
540 CMR 6.00
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Frame |
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At this time, there are no vehicle frame height limitations in Massachusetts. |
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Bumpers |
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There are no bumper height restrictions in Massachusetts. |
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Fenders |
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Massachusetts law lacks any information on fenders or mud flaps. |
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Lights |
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At least 2 headlights and 2 tail lights are required in Massachusetts. It is unclear if auxiliary lighting is allowed. |
MGL 90-7
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Windows |
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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. |
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Exhaust |
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In Massachusetts, vehicles are required to be equipped with mufflers. Exhaust cutouts are not allowed to be installed. |
MGL 90-16
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Engine |
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It is unclear whether or not Massachusetts has any engine swap or engine performance modification rules. |
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Emissions |
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Massachusetts requires emissions testing and general vehicle inspections. |
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Maryland Street Legal Laws 
