California Code, Health and Safety Code - HSC § 12599

A retail license shall authorize a retail sale of safe and sane fireworks within this state only during the period of 12 noon on the 28th of June through 12 noon on the 6th of July of the same calendar year and such license shall expire at the end of such period. No retail license shall be issued for the license period defined in this section unless the application for such license is received by the State Fire Marshal on or before June 15 preceding the license period. A new retail sales license shall be required annually for the period specified in this section.