Cal. Public Contract Code § 10295.5

(a) Notwithstanding any other law, a state agency shall not acquire or utilize sand, gravel, aggregates, or other minerals produced from a surface mining operation subject to the Surface Mining and Reclamation Act of 1975 (Chapter 9 (commencing with Section 2710) of Division 2 of the Public Resources Code), unless the operation is identified in the list published pursuant to subdivision (b) of Section 2717 of the Public Resources Code. (b) Notwithstanding any other law, a state agency shall not contract with a person who is not a surface mining operator, but who is supplying or utilizing sand, gravel, aggregates, or other minerals, to perform work for, or supply materials to, a state agency, unless the operation is identified in the list published pursuant to subdivision (b) of Section 2717 of the Public Resources Code. (c) For purposes of this section, “minerals” means any naturally occurring chemical element or compound, or groups of elements and compounds, formed from inorganic processes and organic substances, including, but not limited to, coal, peat, and bituminous rock, but excluding geothermal resources, natural gas, and petroleum. (d) The requirements of this section shall apply to mining operations on federal lands or Indian lands that are subject to the Surface Mining and Reclamation Act of 1975 (Chapter 9 (commencing with Section 2710) of Division 2 of the Public Resources Code) pursuant to a memorandum of understanding between the Department of Conservation and the federal agency having jurisdiction over the lands.