For purposes of this section:
(a) “Awarding authority” means any of the following:
(1) A state agency for a contract for a public works project that is subject to the State Contract Act (Chapter 1 (commencing with Section 10100) of Part 2 of Division 2).
(2) The Regents of the University of California for a contract for a public works project that is subject to Chapter 2.1 (commencing with Section 10500) of Part 2 of Division 2.
(3) The Trustees of the California State University for a contract for a public works project that is subject to the California State University Contract Law (Chapter 2.5 (commencing with Section 10700) of Part 2 of Division 2).
(b) “Department” means the Department of General Services.
(c) “Eligible materials” means any of the following:
(1) Carbon steel rebar.
(2) Flat glass.
(3) Mineral wool board insulation.
(4) Structural steel.
(d) “Eligible project” means a project that the awarding authority determines will require eligible materials.
(e) “Greenhouse gas emissions” has the same meaning as defined in subdivision (g) of Section 38505 of the Health and Safety Code.