Toxic Air Contaminant (TAC) Identification Program

This page last reviewed August 31, 2011

This page provides information on California's Toxic Air Contaminant (TAC) Identification program. Here you will find a brief explanation of the program, summaries of health and exposure information for the substances on the TAC list, and the executive summaries for reports that are available for specific substances. If you have questions, or would like to order a hardcopy of a report, please contact the Air Quality Measures Branch at (916) 322-7072 or send email to Jose Saldana.

Program Information

Brief Overview A brief overview of the Air Toxics Program.
Scientific Review Panel The Scientific Review Panel (SRP) is charged with evaluating the risk assessments of substances proposed for identification as TACs by the Air Resources Board (ARB) and the Department of Pesticide Regulation (DPR).

TAC List and Available Reports

Toxic Air Contaminant
Identification List
California Code of Regulations Sections 93000 and 93001
1999 Update to
the Toxic Air
Contaminant List
Visit this area to view the final staff report,Update to the Toxic Air Contaminant List, December 1999.
Toxic Air Contaminant
Staff Reports
Visit this area to view the executive summaries, exposure assessment (Part A), health effects (Part B) and public comments (Part C) of identification reports prepared by the ARB on substances evaluated for listing as TACs.

Links to Related California State Agencies

Office of Environmental
Health Hazard Assessment
The Office of Environmental Health Hazard Assessment (OEHHA) assists the ARB by developing the health assessment portion of the TAC identification documents; reviews facility risk assessments for the "Hot Spots" Program; is developing new risk assessment guidelines for the "Hot Spots" Program; and is the lead agency for Proposition 65.
Department of
Pesticide Regulation
TACs that are pesticides are regulated in their pesticidal use by the Department of Pesticide Regulation.

ARB List Server for the TAC Identification Program

Contact Information: Please send questions or comments to Susie Chung at (916) 322-2421.