State Air Resources Board: cement.

Existing law, the California Global Warming Solutions Act of 2006, requires the State Air Resources Board to adopt a statewide greenhouse gas emissions limit equivalent to the statewide greenhouse gas emission level in 1990 to be achieved by 2020, and to adopt rules and regulations in an open public process to achieve the maximum technologically feasible and cost-effective greenhouse gas emission reductions. Existing law designates the state board as the state agency responsible for the preparation of the state implementation plan required by the federal Clean Air Act, and requires the state board to coordinate the activities of local air districts to comply with the act.