Cal. Health & Saf. Code § 12653
The application for a transportation permit shall be submitted to the State Fire Marshal for the transportation of any quantity of fireworks where such transportation is outside the boundaries of the issuing authority having jurisdiction at the point of origin or such shipment originates within this state and is transported out of this state. The application for a transportation permit as required by this section shall be approved by the issuing authority having jurisdiction at the place where the shipment originates before the State Fire Marshal shall issue such transportation permit. No further permits shall be required by issuing authorities other than the authority at the point of origin where the State Fire Marshal has issued a permit pursuant to this section.
Ca. Health and Saf. Code § 12653