Governing Law and Regulations
California Environmental Protection Agency (Cal/EPA) California Air Resources Board (CARB)
Local air districts
See ADDRESSES & CONTACTS for addresses and telephone numbers.
See national section for basic information and federal regulations.
Comparison: State vs. Federal
• Rules. Cal/EPA's Air Resources Board, also known as CARB, is responsible for administering and enforcing California's air rules. The state's air program is shaped by its state implementation plan (SIP), which is a plan detailing methods by which the state will implement, maintain, and enforce the National Ambient Air Quality Standards (NAAQS). As mandated by the federal Clean Air Act (CAA), each state must adopt and submit a SIP to the U.S. Environmental Protection Agency (EPA) for approval.
In addition, California is comprised of many local air districts that maintain their own air quality regulations. The regulations are submitted to EPA by the California Air Resources Board (CARB) on behalf of the district, and upon approval by EPA, the regulations are incorporated into the SIP.
• Administration and enforcement.