The CalEPA Library
contains the collections of the Air Resources Board, the Department of Pesticide Regulations, and the Department of Toxic Substances Control.

The Air Resources Board Collection contains more than 10,000 books and documents and 100,000 research reports that deal with all aspects of air pollution. Special collections include the APTIC (Air Pollution Technical Information Center) and NTIS (National Technical Information Center) documents.

The Department of Toxic Substances Control Collection contains materials on toxic wastes and hazardous substances including administrative regulations as passed by the Department (and documentation on how and why the regulations came to be created, final statement of reasons, etc.), current and potential technologies for the management and disposal of hazardous wastes, cleanup of hazardous waste sites including works on contaminated groundwater and soil; guidance documents on the handling, disposal and documentation of hazardous wastes; and information on the hazardous waste management in specific industries such as metal finishing, underground tank storage, etc.