North Coast Unified Air Quality Management District (District) is a regional environmental regulatory agency which has jurisdiction
over Humboldt, Del Norte, and Trinity counties in Northern California.
The District's primary responsibility is controlling air pollution from stationary sources, and we are committed to achieving and maintaining
healthful air quality throughout our tri-county jurisdiction. The District is one of thirty-five local air districts in California and
enforces local, state, and federal air quality regulations.