California Code, Public Resources Code - PRC § 16000

(a) Facilitating the recycling of natural resources is in the best interest of the state.

(b) Facilitating recycling of concrete materials in concrete production reduces waste, truck trips, and emissions, while advancing sustainable practices in concrete manufacture.

(c) Recycling of aggregates from concrete conserves the natural resources of aggregates.

(d) Recycling of water conserves water resources.

(e) Recycling of returned fresh concrete maximizes the reuse of the natural resources of aggregates, water, and cement and conserves embodied energy from concrete production.

(f) This division is intended to encourage the use of recycled concrete as provided in this division.