Commercial Vehicle Width

Source of Definition: D20/79.

Source of Data: Registrant.

The overall width of a commercial vehicle (e.g., single-unit truck, truck combination) excluding side mirrors, tire bulge and other approved safety devices, such as placards for hazardous material loads.

The width is expressed in inches (or centimeters in jurisdictions using metric measurements), rounded to a whole number.

The Surface Transportation Assistance Act (STAA) [49 CFR 658] of 1982 set the normal maximum allowable width of vehicles operating on Interstates or the National Network of roadways. The maximum width is 102 inches, except in Hawaii where it is 108 inches. An oversize permit is required for wider vehicles operating on an interstate and states may require oversize permits for operating on other roads.

A federal regulation covering limitations on truck size and weight, for designated routes. For details see 49 CFR 658 on eCFR.

Logical Format (Type/Max Length): N/3.

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width type: number-integer