California Code, Public Resources Code - PRC § 42452

(a) “Consumer” means a purchaser or owner of a rechargeable battery. “Consumer” also includes a business, corporation, limited partnership, nonprofit organization, or governmental entity, but does not include an entity involved in a wholesale transaction between a distributor and retailer.

(b) “Department” means the Department of Toxic Substances Control.

(c) “Rechargeable battery” means a small, nonvehicular, rechargeable nickel-cadmium, nickel metal hydride, lithium ion, or sealed lead-acid battery, or a battery pack containing these types of batteries.

(d) “Retailer” means a person who makes a retail sale of a rechargeable battery to a consumer in this state, including a manufacturer of a rechargeable battery who sells that rechargeable battery directly to a consumer.  A sale includes, but is not limited to, transactions conducted through sales outlets, catalogs, or the Internet, or any other similar electronic means, but does not include a sale that is a wholesale transaction with a distributor or retailer. “Retailer” does not include a person who sells primarily food and is listed in the Progressive Marketing Grocers Guidebook. “Retailer” does not include a person who has less than one million dollars ($1,000,000) annually in gross sales.

(f) “Used rechargeable battery” means a rechargeable battery that has been previously used and is made available, by a consumer, for reuse, recycling, or proper disposal.