Environment
- California Air Quality Data - Air Resources Board
- California Weather Databases - University of California
- California Geological Survey - Department of Conservation, formerly the Division of Mines and Geology
- Division of Recycling- Department of Conservation
- Oil, Gas & Geothermal Resources - Department of Conservation
- Publications - Oil, Gas & Geothermal Resources - Department of Conservation
- Worker Health and Safety Reports Index - Department of Pesticide Regulation