By March 1, 2010, owners of large fleets must be in compliance with the 2010 performance
requirements in the Air Resources Board Regulations adopted last year. All large fleets (those
fleets with combined HP exceeding 5,000) must report fleet actions (i.e. how the fleet complied
with the regulation with retirements, credits, exhaust retrofits, etc.) to ARB no later than April 1,
2010.

For further resources concerning Air Resource Board regulations and compliance, visit
www.arb.ca.gov and http://www.arb.ca.gov/msprog/ordiesel/knowcenter.htm

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National Equipment Appraisal reported on this issue in February 2009.