Steps to ETS Identification Staff initiated a formal scientific evaluation of Environmental Tobacco Smoke (ETS) as a Toxic Air Contaminant (TAC) in 2001. Categories Topics Airborne Toxics Programs Air Toxics Program Type Information Contact Air Toxics Email airtoxics@arb.ca.gov Based on the results of scientific evaluation, staff promulgated a rulemaking which culminated with a hearing of the California Air Resources Board on January 26, 2006. At the hearing, the Board formally identified ETS as a TAC with a 6-0 vote.The entire process flowchart.Status of EvaluationETS as a TAC News Release - January 26, 2006Public Hearing Notice and Initial Statement of Reasons - December 9, 2005Scientific Review Panel Findings - September 12,2005Scientific Review Panel Approved Report - June 24, 2005Scientific Review Panel Meeting - June 24, 2005Scientific Review Panel Meeting - May 19, 2005Scientific Review Panel Meeting - March 14, 2005Scientific Review Panel Meeting - January 6, 2005Scientific Review Panel Meeting - November 30, 2004Released Scientific Review Panel Version Report - October 2004Public Workshop - March 15, 2004Draft Report Released for Public Comments - Sent on December 17, 2003Formal Request to OEHHA to Develop Health Risk Assessment - Sent on July 27, 2001Enclosures 1 - 3 -- Sent on June 11, 2001ETS Information Request Letter Environmental Tobacco Smoke Identified as a Toxic Air Contaminant Related Resources SNAPS IOF Communities Data Analysis Update and Community Meeting: January 2025 Non-Vehicular Diesel Engine Risk Assessment Guidance SNAPS Lost Hills Draft Final Report Community Meeting - March 2024