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Ohio's Bumper Height Law
Ohio Revised Code Section 4513.021
(A) As used in this section:
(1) "Passenger car means any motor vehicle designed to carry ten passengers or less, except a multipurpose passenger vehicle or motorcycle.
(2) "Multipurpose passenger vehicle" means a motor vehicle designed to carry ten passengers or less, that is constructed either on a truck chassis or with special features for occasional off-road operation.
(3) "Truck" means every motor vehicle, except trailers and semi trailers, designed ad used to carry property and having a gross vehicle weight rating of ten thousand pounds or less.
(B) The director of public safety will adopt rules for conformance.
(C) No person shall operate upon a street or highway any passenger car, multipurpose vehicle, or truck registered in this state that does not conform to the requirements of this section or to any applicable rule adopted pursuant to this section.
(D) No person shall modify any motor vehicle registered in this state in such a manner as to cause the vehicle body or chassis to come in contact with the ground, expose the fuel tank to damage from collision, or cause the wheels to come in contact with the body under normal operation, and no person shall disconnect any part of the original suspension system of the vehicle to defeat the safe operation of that system.
(E) Nothing contained in this section or in the rules adopted pursuant to this section shall be construed to prohibit either of the following:
(1) The installation of heavy equipment including shocks absorbers and overload springs;
(2) The operation of a passenger car, multipurpose passenger vehicle, or truck registered in this state with normal wear to the suspension system if the normal wear does not adversely affect the control of the vehicle
(F) This section does not apply to any specially designed or modified passenger car, multipurpose passenger vehicle, or truck when operated off a street or highway in races and similar events.
Administrative Code 4501-43-04 - Specifications
(A) The horizontal bumper shall be at least 4.5 inches in vertical height, centered on the vehicle's centerline, and extend no less than the width of the respective wheel track distances. Bumpers shall be horizontal load-bearing bumpers attached to the vehicle frame to effectively transfer impact when engaged.
(B) Maximum bumper heights shall be determined by weight category of gross vehicle weight rating (GVWR) measured in terms of the vertical distance between the ground and the bottom of the frame rail or bumper. Maximum bumper heights are as follows:
(C) If the body and/or truck bed height is altered, the difference in height between the body floor and/or the truck bed floor to the top of the frame ail shall not exceed four inches. (Body Lifts)
(D) For any vehicle with bumpers or attaching components which have been modified or altered from the original manufacturers design in order to conform with the maximum bumper requirements of this rule, the bumper height shall be measured from a level surface to the bottom of the vehicle frame rail at the most forward and rearward points of the frame rail.
(E) The height restriction in this rule applies to the distance from the ground to the bottom of the frame rail under any one or more of the following conditions:
(1) A motor vehicle is not equipped with a front and rear bumper.
(2) The bumper height relative to the frame rails has been altered.
(3) A supplemental bumper has been installed or an addition to the original or replacement has been made.