California Code, Health and Safety Code - HSC § 108215

The department, by regulation, shall exempt from subdivision (a) of Section 108205 (1) articles such as chemical sets, that by reason of their functional purpose require the inclusion of the hazardous substance involved or necessarily present an electrical, mechanical, or thermal hazard and that bear labeling giving adequate directions and warnings for safe use and are intended for use by children who have attained sufficient maturity, and may reasonably be expected to read and heed the directions and warnings and (2) fireworks subject to control under Part 2 (commencing with Section 12500) of Division 11.