Transportation Modes
Trucking-Freight Systems
Vehicle Size and Weight

Formula for the maximum weight on any axle of a motor vehicle on the interstate highway system.

Compliance with the Bridge Formula weight limits is determined by using the following formula

Calculate the maximum allowable weight of axles of motor vehicles on the interstate highway system.

California Vehicle Code requirements regarding truck length, overhang, width, weight and clearances

Scanning study of five European countries on commercial motor vehicle size and weight enforcement.

Full text of handbook from Montana.

The maximum legal length of the semi-trailer portion of a tractor-trailer combination by state law

Case study on using weigh-in-motion data for vehicle weight regulation and enforcement activities.

Guidelines for law enforcement escorts to standardize the safe movement of permitted oversize/overweight loads.

Plan to help improve compliance with truck weight regulations.

Guidelines for pilot car escorts to standardize the safe movement of permitted oversize/overweight loads.

Report explains regulatory options and mitigation in regards to truck weight and size.

Table shows the number of trucks cited or issued civil assessments by the States for violation of weight laws.

Full text of US Federal regulation on certification of size and weight enforcement.

Full text of US Federal regulation on truck size, weight and route designations.

Guidance to interpret Federal regulations on weight limits and size requirements on the interstate system.

Fact-based information on truck size and weight issues.