Our Issue: Diesel Pollution Control Rules

Diesel Emission Regulation Updates - July 2008

The Air Resources Board (ARB) has made a number of adjustments to the proposed diesel emission regulation for In-Use On-Road diesel trucks and buses. Available for inspection on our website are the following downloads from the ARB website. The information provides a snapshot of where the ARB was in May 2008.

dieselonrdtruckbusrulechanges.pdf provides a synopsis of rule changes from January 2008 to May 2008.

diesel_emission_analysis_ARB.pdf provides the statistics of where the emissions are coming from by truck class and age and who owns the equipment.

diesel_emission_Cost_Method_Paper.pdf provides the cost methodology for analyzing the economic impacts for compliance.

Briefly, the ARB has relaxed their requirements somewhat based on updated information about the demographics of trucks and buses in California. The ARB has discovered that a large proportion of the trucks in California are owned by very small fleets (3 vehicles of less), making the economic impact on the owners more significant than originally predicted. In response to this, compliance dates for many vehicles have been pushed out to 2012, specialty agricultural vehicles to 2017 and the low use provisions have been expanded for vehicles that don’t see much use in a year.

Through July, the ARB is holding Cost Workshops;
San Jose will see a workshop on Wednesday, July 30, 2008.
Time: 12:00 p.m. – 4:00 p.m. and 5:00 p.m. – 8:00 p.m.
Location: County of Santa Clara Isaac Newton Senter Auditorium
70 West Hedding Street
San Jose, California 95110

Keep up with developments by watching the ARB website:
http://www.arb.ca.gov/msprog/onrdiesel/onrdiesel.htm

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