The following words and phrases shall have the meanings set forth, and if any word or phrase used in this article is not defined in this section, it shall have the meanings set forth in the California Vehicle Code; provided that if any such word or phrase is not defined in the Vehicle Code, it shall have the meaning attributed to it in ordinary usage.
(a) “Terminal” means any facility at which freight is consolidated to be shipped or where full-load consignments may be off-loaded, or at which the vehicle combinations are regularly maintained, stored, or manufactured.
(b) “Interstate truck” means a combination of vehicles consisting of a truck tractor and semitrailer, or of a truck tractor, semitrailer, and trailer, with unlimited length as regulated by Vehicle Code, Sec. 35401.5.
(c) “Caltrans” means the State of California Department of Transportation or its successor agency.