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The Air Resources Board (ARB) staff has issued a mail-out
advisory to address compliance with existing in-use regulations
for owners affected by the recall of the LongMile diesel
particulate (PM) filter system. This advisory only applies to
vehicles subject to the Transit Fleet Vehicle Regulation, the
Urban Bus Regulation, the Public Agency and Utility Fleet
Regulation, and the Solid Waste Collection Vehicle Regulation.

ARB is allowing vehicle owners that have installed a retrofit PM
filter, which became subject to the recall, to continue operating
vehicles with the Cleaire Muffler Module (CMM) configuration
until 
August 16, 2017, as long as the vehicle remains in the fleet. 
After August 16, 2017, the CMM must be removed and replaced with
another available PM filter retrofit.

For more information the advisory is available at:  
http://www.arb.ca.gov/msprog/mailouts/msc1418/msc1418.pdf

Background:
ARB has adopted a number of regulations that require diesel
engine owners to take steps to reduce their engine emissions. 
Nearly all trucks and buses with a manufacturer’s gross vehicle
weight rating greater than 14,000 pounds that operate in
California are required to be upgraded to reduce exhaust
emissions.  To comply with these requirements, fleet owners were
required to upgrade exiting engines by installing verified diesel
PM filters, or by upgrading to cleaner engines or vehicles. 
These regulations are part of the State’s plan to meet federal
ambient air quality standards and to protect public health. 

For further information about ARB’s diesel regulations, please
visit www.arb.ca.gov/truckstop or call 1-866-6DIESEL
(866-634-3735), or email us at 8666diesel@arb.ca.gov. 



California is in a drought emergency.
Visit www.SaveOurH2O.org for water conservation tips.

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