California Code, Public Resources Code - PRC § 41951

(a) For the purposes of this section, “commercial entity” includes a multifamily residential complex.

(b) Unless otherwise provided by contract, paper, glass, cardboard, plastics, used motor oil, ferrous metal, aluminum, and other recyclable materials, which have been segregated from other waste materials, and placed at the designated recycling collection location by any commercial or industrial entity, shall not be removed by anyone other than the authorized recycling agent.

(c) Unless otherwise provided by contract, from the time that the recyclable materials specified in subdivision (b) are placed at the designated recycling location, the recyclable materials are the property of the authorized recycling agent.