Petition Challenging August 27, 1998 CARB Declaration Regarding Diesel Particulate Matter

As four accomplished and knowledgeable faculty members at the University of California and Stanford University, and in accord with the provisions of Section 39662 (e) of the California Health and Safety Code , we herewith petition the California Air Resources Board (CARB) to review its August 27, 1998 decision declaring the particulate matter (PM) component of diesel exhaust to be a  toxic air component (TAC). We have specific additional scientific evidence regarding the health effects of diesel PM which was not available as to 1998, as well as other evidence about CARB procedures used to make the 1998 decision, which we believe justifies a revised determination.