Cal. Health & Safety Code § 42310.5

(a) Notwithstanding any provision of any district permit system, including the south coast district permit system, any permit issued for the operation of equipment at an asphalt plant shall be valid for operation of the equipment by another operator if all of the following conditions are met:
1. (1) The permitted operator has given the new operator a copy of the operating permit.
2. (2) The permitted operator has filed, with the district, a copy of the operating permit attached to a signed statement from the new operator agreeing to comply with the terms of the permit.
3. (3) The permitted operator has paid a reasonable administrative fee as determined by the district.
(b) If the operation of the equipment by the new operator results in a violation of any state law or rule or regulation of the state board or district adopted pursuant to this division, the liability for the violation shall be determined based upon whether the conduct of the permitted operator or the new operator, or both, caused the violation.