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. The federal NESHAPs, including the source specific NESHAPs, also known as maximum achievable control technology (MACT) standards, are in effect in California. For more information on the federal hazardous air pollutant (HAP) standards, see the national section HAZARDOUS AIR POLLUTANTS.
The California Air Resources Board (CARB) has developed legislation, regulations, and guidance documents for identifying TACs and quantifying emissions of toxic substances. Under the Toxic Air Contaminant Identification and Control Act, CARB has classified several substances as TACs and has developed control measures for specific sources of TACs. The Air Toxics "Hot Spots" Information and ...