When Do I Need an Oversize/Overweight Permit?

Oversize and overweight permits are required for vehicles and loads that exceed the standard legal size and weight limits set by federal and state regulations. These permits ensure that oversized or overweight vehicles can travel safely on public roads without causing damage to infrastructure or posing risks to other road users. A permit may be required for each state the load is moved through based on state applicability.

When do I need one?

Overweight permits are required any time the load exceeds 80,000 pounds or axle limits exceed the limits, which vary by state. If a single load has a total weight of 90,000 pounds an overweight permit would be required. Some states may require a permit on an 80,000 pound load if the trailer axle weight is 35,000 pounds.

Over height permits also vary from state to state. They can be required for loads as low as 13’5 or as high as 14’0. Drivers should always know the height of their load to avoid clearances the vehicle will not fit under.

Over width permits are required any time a vehicle is wider than 8’5. These will be needed for loads like mobile homes, sheds, and other large preconstructed items.

Escorts or pilot vehicles are often required for over length and over width loads.
Requirements for oversize/overweight permits

The requirements for oversize and overweight permits include vehicle dimensions (length, width, height) and weight, along with a detailed route plan that ensures the vehicle can travel safely. Permitting authorities assess the vehicle's load, evaluate structural road limitations, and verify compliance with local regulations. Additional requirements may include proof of insurance, escort vehicle coordination, time-of-day restrictions, and payment of applicable fees. The carrier must also ensure that safety measures are in place during transport to prevent road damage or accidents.

What are the consequences?

Operating without the required permits can lead to significant legal and financial consequences. Fines can be assessed for not obtaining the correct permit. Some states base fines on the excess weight over the legal limit. The vehicle can be placed out of service until the proper permits are acquired and the fines are paid, resulting in significant delays in delivery. Repeat offenders can even face revocation of their CDL.

Required information for obtaining a permit

• Identify the type of permit needed. You may need an oversize, overweight, or a divisible load permit. The dimensions and weight of the vehicle and load determine what you will need.
• Check state-specific requirements. Each state has its own regulations and the application process may vary by state.
• Collect the required information. You will need details about your vehicle, load, and route. This will include the weight, dimensions, and roads you plan to travel on.
• Complete and submit the application. Completing the forms can usually be done on the state DOT websites. There will be fees associated with the permit based on the type and details of the permit.
• Once the permit is approved and received, it must be carried in the vehicle while transporting the load.