OAR 734-073-0056
Truck-Tractor and Semitrailer Combinations — National Network Highways


The Federal Highway Administration determined Oregon’s grandfathered semitrailer length to be 53 feet, allowed by the STAA 1982. The length of a semitrailer operated in Oregon on the National Network Highways designated by the STAA 1982 must not exceed 53 feet. The overall length is not restricted.


The length of any load carried on the semitrailer authorized in section (1) of this rule must not extend beyond the rear of the semitrailer by more than five feet.


The National Network Highways in Oregon approved for operation by this rule consist only of those highways listed in Code of Federal Regulations Title 23, Part 658, Appendix A. These routes are shown in green on Route Map 7, available from the CCD Over-Dimension Permit Unit. Route Map 7 dated January 2005 is by reference made a part of Division 73 rules.


A permit is not required for the dimensions and routes authorized by this rule.

Source: Rule 734-073-0056 — Truck-Tractor and Semitrailer Combinations — National Network Highways, https://secure.­sos.­state.­or.­us/oard/view.­action?ruleNumber=734-073-0056.

Last Updated

Jun. 8, 2021

Rule 734-073-0056’s source at or​.us