When Is a Permit Required? 

A permit is generally necessary when: - The height of the load exceeds 13’6″ or 14’0”, depending on the state or province. - The width of the load surpasses 8’6″. - The length of the load varies by state or province but is considered oversize if it exceeds specific limits. - The weight of the load exceeds 80,000 pounds in some states, though this requirement varies.