LINKS TO THE CALIFORNIA AIR RESOURCES BOARD REGARDING PROPOSED DIESEL EMISSION REGULATIONS.
Webpage that lists draft proposals regarding the regulations:
http://www.arb.ca.gov/msprog/onrdiesel/onrdiesel.htm
PDF download of the draft proposed regulation:
http://www.arb.ca.gov/msprog/onrdiesel/documents/08-1211Attachment_C.pdf
PDF download of the CARB fact sheet regarding the proposed regulations:
http://www.arb.ca.gov/msprog/onrdiesel/documents/truckruleoverview.pdf