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newsrel -- ARB unveils proposed changes to California’s Truck and Bus Regulation

Posted: 06 Mar 2014 16:45:43
Please consider the following news release from the California
Air Resources Board: http://bit.ly/1nkomPO

March 6, 2014



Karen Caesar
(626) 575-6728

ARB unveils proposed changes to California’s Truck and Bus

Board will offer new flexibility options while still protecting
air quality

SACRAMENTO - The California Air Resources Board today unveiled
proposed amendments to its Truck and Bus Regulation. The
amendments are designed to provide new flexibility to truckers
working to clean up their aging diesel fleets while still
protecting the important emission benefits the regulation
provides. Board members will consider the changes at the April 24

The proposed changes were developed after some stakeholders
voiced concerns regarding their ability to comply with the
regulation at the October 2013 Board hearing. Truckers were able
to expand on these concerns at five ARB-sponsored public
workshops held across the state in December.

“The trucking community spoke and we listened,” said ARB Chairman
Mary D. Nichols. “The good news is that we will not have to
sacrifice the state’s air quality goals to assist fleet owners.
These amendments, which include more flexible deadlines and
increased opportunities to access incentive funding, will further
our emissions reduction goals by better ensuring that fleets can
meet the requirements of the regulation.”

Nichols added that if the Board approves the changes, fleet
owners who have already made investments to upgrade their
vehicles will be provided with some benefits including additional
time beyond what is currently allowed to keep trucks they have

“We recognize the huge investments that many business owners have
already made in order to meet the requirements of the Truck and
Bus Regulation,” Nichols said. “Their efforts have gone a long
way toward helping us to meet our mandatory deadlines and we laud
them for what they have accomplished.”

The proposed amendments provide additional regulatory flexibility
to small fleets, lower mileage fleets and fleets in certain areas
that have made substantial progress towards cleaner air. If
approved, the amendments would better protect the emissions
benefits of the regulation that are necessary to meet
California’s air quality obligations under the federal Clean Air
Act, as well as the goals of the ARB’s Diesel Risk Reduction

The proposed changes include:

• A longer phase-in period for diesel particulate matter (PM)
requirements for trucks that operate exclusively in certain rural
areas with cleaner air;
• Additional time and a lower cost route for all small fleet
owners to meet their PM compliance requirements, while reopening
opportunities for these fleet owners to apply for and receive
public incentive funding; 
• A compliance route for owners currently unable to qualify for a
loan to finance required upgrades;
• Adjusted schedules for low-use vehicles and  certain work
• Recognition of fleet owners who took action to comply by
providing additional “useable life” for retrofit trucks and
reducing near-term compliance requirements.

Overall these amendments would also ensure that, by 2020, the
annual emission reductions would be at the same level as with the
existing regulation.

For more information, please see: Proposed Amendments to the
Truck and Bus Regulation http://bit.ly/1fbV67c

Fast Facts on Diesel Emissions:
• Diesel exhaust contains a variety of harmful gases and more
than 40 other known cancer-causing compounds. In 1998, California
identified diesel particulate matter as a toxic air contaminant
based on its potential to cause cancer, premature death and other
health problems.
• The Truck and Bus Regulation (Regulation) was adopted in 2008
to clean up harmful emissions from nearly all heavy-duty diesel
trucks operating in California. The Regulation was amended in
2010 to provide economic relief to truckers affected by the
recession, particularly small fleets, by delaying the first
compliance requirements by one year and extending the time the
truck could be operated before needing to be replaced. 
• Approximately 1 million trucks operate annually on California
highways. Roughly 625,000 are based out of state. Of the
remaining 400,000 registered in California, about half are in
small fleets of three or less.
• The Regulation currently requires most heavy trucks in
California to install soot filters or upgrade to newer models
with filters by Jan. 1, 2014, and that nearly all trucks have
them installed by Jan. 1, 2016.
• For small fleets (three or fewer vehicles), Jan. 1, 2014, was a
critical compliance milestone because for the first time at least
one vehicle in each fleet needed to comply. 
• At its October 2013 meeting, the Board heard an update on the
Regulation and agreed with staff’s proposal to move forward with
a number of near-term strategies to provide flexibility while not
compromising the overall reduction and health benefits to be
achieved by the Regulation.
• In 2000, the ARB adopted its Diesel Risk Reduction Plan, a
blueprint for developing regulations to address diesel emissions
from all sources including garbage trucks, urban buses,
construction equipment, port trucks and fuels. For more
information, see Diesel Risk Reduction Plan
• Anyone with questions on current regulatory requirements can
visit ARB’s TruckStop website http://www.arb.ca.gov/truckstop,
call 866-6DIESEL or email 8666Diesel@arb.ca.gov.

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

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