California Code, Public Resources Code - PRC § 42493

(a) “Cell phone” means a wireless telephone device that is designed to send or receive transmissions through a cellular radiotelephone service, as defined in Section 22.99 of Title 47 of the Code of Federal Regulations. A cell phone includes the rechargeable battery that may be connected to that cell phone. A cell phone does not include a wireless telephone device that is integrated into the electrical architecture of a motor vehicle.

(b) “Consumer” means a purchaser or owner of a cell phone. “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.

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

(d) “Retailer” means a person who sells a cell phone in the state to a consumer, including a manufacturer of a cell phone who sells that cell phone 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.

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