Cal. Health & Safety Code § 25216.3
(a) For purposes of this section, “spent dry cell battery containing zinc electrodes” means an alkaline or zinc-carbon battery, that meets all of the following conditions:
(b) Notwithstanding any other provision of law, a spent dry cell battery containing zinc electrodes is not a hazardous waste, and is not subject to the requirements of this chapter, if all of the following conditions are met: