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ordiesel -- US EPA Waiver Granted to Enforce the In-Use Off-Road Diesel Vehicle Regulation

Posted: 13 Sep 2013 15:27:05
The Air Resources Board (ARB) has received authorization from the
United States Environmental Protection Agency (US EPA) to enforce
the In-Use Off-Road Diesel Vehicle Regulation, including the
regulationís performance standard requirements, such as turnover
requirements and restrictions on adding Tier 0 and Tier 1
vehicles. Enforcement of the January 1, 2014 requirements for
large fleets (> 5,000 total horsepower) will be delayed until
July 1, 2014.  The prohibition on adding vehicles with Tier 0
engines to any fleet and Tier 1 engines to large or medium fleets
is effective on January 1, 2014.  Enforcement Advisory 13-25
informs all off-road fleets as to how ARB staff will proceed with
the enforcement of the regulation and is available on our website
at http://www.arb.ca.gov/msprog/mailouts/msc1325/msc1325.pdf.  To
assist in planning and selecting compliance strategies to meet
the January 1, 2014 requirements, large fleets are encouraged to
use the fleet average calculator available at
http://www.arb.ca.gov/msprog/ordiesel/documents/documents.htm.  A
Compliance Snapshot is also available to all off-road fleets in
their Diesel Off-Road Online Reporting System (DOORS) account. 
The Snapshot displays the fleetís current standing in regards to
the next compliance date, their upcoming requirements, and the
amount of credits they have earned that can be applied towards
meeting the requirements.

For additional information about complying with the In-Use
Off-Road Diesel Vehicle Regulation, including fact sheets,
advisories, answers to frequently asked questions, and DOORS user
guides, please visit our Knowledge Center at
http://www.arb.ca.gov/msprog/ordiesel/knowcenter.htm, or call our
DOORS helpline at 1-877-59DOORS (1-877-593-6677).

Background

The regulation for In-Use Off-Road Diesel Vehicles first became
effective under California law on June 15, 2008.  This regulation
is intended to reduce harmful emissions from diesel powered
construction, mining, and other industrial vehicles operating in
California that have propulsion engines that are 25 hp or
greater.  Fleets were required to initially report their off-road
diesel vehicles to ARB in 2009 via DOORS.  In addition, fleet
owners are currently subject to restrictions on unnecessary
idling, and some large fleets will be subject to accelerated
replacement/repower requirements beginning January 1, 2014.

If you have any questions regarding the regulatory requirements,
please contact the DOORS hotline at (877) 59-DOORS (877-593-6677)
or by email at doors@arb.ca.gov.  For further information about
the Off-Road Diesel Vehicle Regulation, please visit the off-road
regulation website at http://www.arb.ca.gov/ordiesel.  For
further information on ARBís diesel vehicle and equipment
regulations, please visit the TruckStop website at
http://www.arb.ca.gov/truckstop.

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