Indiana Oversize Load Rules


According to the Indiana Department of Revenue's general provisions of an oversize/overweight vehicle permit, an oversize or overweight vehicle must meet a number of requirements in order to be transported on a road in the state. This includes regulations on permits, height, weight and the support materials that must accompany the vehicle.


  • Before you attempt to move an oversized load, you must have an Oversize/Overweight (OSW) Permit issued by the Indiana Department of Revenue. This includes setting up an OSW Transporting Account and ordering individual permits. You can get the process started by applying for an OSW Account through the Indiana Motor Carrier Applications process.


  • According to the Indiana Department of Revenue, oversized or overweight vehicles must have a sign on the front and the back of the vehicle, marking it as an oversized load. The vehicle must also have two red or orange flags on the widest portions of the load.


  • Vehicles have to have a low-beam headlight---like a daytime running light---on while driving the load. If the load is a mobile home or other building that is more than 12 feet 4 inches wide, the load must also have four flashing amber lights on either side, and in the front and rear of the load.


  • If the vehicle is going to be stopping traffic for any length of time, the vehicle must have flag persons along to direct traffic.

Dimensions and Time

  • Vehicles as much as 16 feet in width are allowed on Indiana roads, but certain sizes are only allowed at certain times of the day and week. In general, the provisions of the Department of Revenue are:

    Vehicles under 200,000 lbs. and up to 110 feet long, 10 feet wide, and 13 feet 6 inches high are allowed seven days a week at any time.

    Vehicles 110 feet long, from 10 feet to 14 feet 4 inches wide, and up to 15 feet high are allowed seven days a week, 1/2 hour before sunrise and 1/2 hour after sunset.

    Vehicles more than 200,000 lbs. and 16 feet wide, or more than 15 feet high are allowed from 8:30 a.m. to 3:30 p.m. Monday through Friday

    Vehicles from 14 feet 4 inches to 16 feet wide are allowed Monday through Friday, 1/2 hour before sunrise and 1/2 after sunset.

    Vehicles with mobile homes or sectional buildings from 8 feet 6 inches to 14 feet 4 inches wide are allowed Monday through Friday 1/2 hour before sunrise and 1/2 hour after sunset, as well as Saturdays 1/2 hour before sunrise to noon.

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