California Environmental Protection Agency Air Resources Board

California's Legislature established the Air Resources Board (ARB) to attain and maintain healthy air quality, research causes and solutions to air quality problems, and address the problems caused by motor vehicles which are the major cause of air pollution in the state. The ARB was created in 1967 with the passge of the Mulford-Carrell Air Resources Act merging the California Motor Vehicle Pollution Control Board and the Bureau of Air Sanitation and its laboratory.

The mission of the ARB is to promote and protect public health, welfare and ecological resources through the effective and efficient reduction of air pollutants while recognizing and considering the effects on the economy of the state. The ARB is a part of the California Environmental Protection Agency, which reports directly to the Governor's Office in the Executive Branch of California State Government. The ARB consists of 11 members appointed by the Governor of California. Local permitting, monitoring and compliance with the state regulation is divided into 35 local air pollution control districts.