The staffs of the Air Resources Board (ARB or Board) and the Office of Environmental Health Hazard Assessment (OEHHA) have been evaluating diesel exhaust since 1989 under California’s air toxics program, for potential identification as a toxic air contaminant (TAC). A draft report was first released in June 1994, for public review and comment. A revised draft report was released in May 1997. A third draft report was report released for public review in February 1998. The February 1998 report was formally reviewed and approved by the Scientific Review Panel (SRP) at its April 22, 1998, meeting.
The final report and a staff report are available in our “formal” rulemaking activity referenced below.
Fact Sheets
- · The Toxic Air Contaminant Identification Process: Toxic Air Contaminant Emissions from Diesel-Fueled Engines (PDF – 10K)
- · California’s Process to Reduce Health Risks Posed by Toxic Air Contaminant Emissions from Diesel-Fueled Engines (PDF – 14K)
- · Rulemaking Activity
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- · The regulatory documents pertaining to the formal rulemaking activity beginning with the 45-day public hearing.
- · Diesel Programs
Diesel Fuel Program
Diesel Activities – Related Programs, Plans and Other Topics
| HEARING ACTION AND SUPPLEMENTAL 15-DAY NOTICES |
o Attachment A: Scientific Review Panel Chairman’s Cover Letter and Panel Findings on Proposed Identification of Diesel Exhaust as a Toxic Air Contaminant § SRP Chairman’s Cover Letter (PDF – 6K) and § The SRP Findings of Diesel Exhaust (PDF – 33K) o Attachment B: Proposed Regulation Order (PDF – 7K)
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| PUBLIC HEARING NOTICE AND RELATED MATERIALS |
o Appendix I: (Proposed Regulation Order) (Staff Report) o Appendix II: (Findings of the SRP) (Staff Report) and o Appendix III: (SRP-Approved Version) of the: § Executive Summary (PDF – 152K) § Part A (Exposure Assessment) (PDF – 594K) § Part B (Health Risk Assessment for Diesel Exhaust) (PDF – 1,995K) § Part C (Responses to Comments) June 1994 Comment Period ARB (PDF – 45K) ARB (PDF – 37K) (pp. 1-154) (PDF – 539K) ARB (PDF – 91K) |
| Part A, prepared by the ARB staff, is an evaluation of emissions of, and exposure to, diesel exhaust. Part B, prepared by the OEHHA staff, assesses the health effects of diesel exhaust. Part C consists of copies of the public comments received on the June 1994, May 1997, and February 1998 draft reports, and the ARB / OEHHA staff responses. Because of the size and format of the comment letters as well as the Appendices to Part A, they were not included on this page. Part A Appendices and Part C (public comment letters) are available by contacting Kathy Spring at (916) 323-3485 |