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Louisiana Regulations for Trucks, Vehicles and Loads


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General Regulations
An oversize or overweight permit must be obtained from the Department of Transportation and Development’s Truck Permit Office to operate a vehicle which exceeds the legal size or weight on state highways.

In general, oversize and overweight permits are issued only for indivisible vehicles and loads. Indivisible vehicles or loads are those which cannot be easily divided, broken down or dismantled to conform to the legal limitations.

Exception: When all parts which have been or can be readily divided or dismantled from a shipment weigh 500 pounds or less, these parts may be moved along with the load.

Exception: Vehicles transporting an oversize/overweight dozer will be allowed to remove its blade or sideboom and haul it on the same vehicle.

Exception: Vehicles transporting pipe loaded across a vehicle, rather than lengthwise, will be eligible for overwidth permits as long as the width of the vehicle and load does not exceed 8 feet 8 inches.

Exception: Vehicles transporting up to three (3) bundles of prepackaged oilfield pipe may not exceed 10 feet in width.

Exception: Vehicles transporting farm or forest products in their natural state will be eligible for Harvest Season or Natural Forest Product Permits.

Exception: Vehicles transporting Agronomic or Horticultural products in their natural state will be eligible for Agronomic/Horticultural Permits.

Exception: Vehicles transporting pulpwood or plywood bolts loaded across a vehicle, rather than lengthwise, will be eligible for Forest Product Permits as long as the width does not exceed 9 feet.

Exception: Waste disposal trucks transporting some divisible loads will be eligible for Overweight Permits.

Exception: Vehicles transporting oversize loads will be allowed to create an overheight dimension as long as there is at least one (1) permitted dimension, and all the dimensions for the load are shown on the permit. Overwidth and overlength dimensions may never be created.

Exception: Specialized trailer combinations used in the moving of specialized overweight loads are allowed to obtain overweight permits to carry no more than two items of that combination used in the transportation of the exceptional load (i.e., one jeep and one dolly or one jeep and one deck insert). These permits may be obtained for either a trip to pick up the load, or a return trip after making a delivery.

Exception: Trucks importing/exporting commodities from a port located on the Mississippi River via a bridge over the Mississippi River to a facility located in the same parish as the bridge.

Exception: Eaves of Mobile Homes are allowed to be a maximum of 6 inches on each side without being considered part of the overall width.
Exception: Vehicles transporting not more than two (2) pieces of timber cutting or logging equipment between job sites will be eligible for Timber Cutting/Logging Equipment Permits, when the trailer upon which the equipment is towed and the equipment are owned or leased by the same person.

Exception: Approved safety devices such as mirrors and tarp devices are not to be considered part of the overall width of a vehicle.

Exception: Aerodynamic devices are not to be considered part of the length of a vehicle.

The Department reserves the right to impose conditions upon the issuance of special permits and may impose requirements such as additional axles, routing, date, time of day, speed limit, escort(s), bucket or pole trucks, etc. All expenses of any condition or requirement are to be paid for by the applicant. All costs incidental to permits, such as, telephone charges, wire service charges, insurance, or escort fees must be borne by the applicant.

Permits must be obtained before movement of an oversize or overweight vehicle or load begins or before the vehicle enters Louisiana. Permits are not issued by DOTD Stationary enforcement units, they can only be obtained from the DOTD Truck Permit Office or the Louisiana Truck center, and both located in Baton Rouge.

A permit must be carried in the vehicle for which it was issued or in the escort vehicle, and must be available at all times for inspection by the proper authorities.

All other traffic and safety laws and regulations must be obeyed.

Vehicles must be licensed for the maximum allowable license weight in order to obtain an overweight permit.

The make, model and serial numbers must be provided for construction equipment such as draglines, cranes, dozers, backhoes, and tractors which are being moved on oversize/overweight permits.