California Code, Health and Safety Code - HSC § 12723

(a) The authority seizing fireworks under the provisions of this chapter shall notify the State Fire Marshal not more than three days following the date of seizure and shall state the reason for the seizure and the quantity, type, and location of the fireworks. Fireworks, with the exception of dangerous fireworks, seized pursuant to Section 12721 shall be disposed of by the State Fire Marshal in the manner prescribed by the State Fire Marshal at any time subsequent to 60 days from the seizure or 10 days from the final termination of proceedings under the provisions of Section 12593 or 12724, whichever is later. Dangerous fireworks shall be disposed of according to procedures in Sections 12724 and 12726. Fireworks seized by any authority as defined in this chapter, other than the State Fire Marshal or his or her salaried assistants, shall be held in trust for the State Fire Marshal by that authority.

(b) This section shall become operative on January 1, 2016.