For purposes of this article, the following terms have the following meaning:

(a)  “Vehicle” means a truck, trailer, semitrailer, or cargo tank. “Vehicle” does not include a truck tractor unless it is capable of containing a portion of the cargo.

(b)  “Container” means a portable tank, intermediate bulk container, or rolloff bin.

(Amended by Stats. 1997, Ch. 945, Sec. 2. Effective January 1, 1998.)