The California Air Resources Board (ARB/Board) announces the
release of the draft document "Supporting Information for
Technology Assessments: Truck and Bus Sector Description".
ARB's long-term objective is to transform the mobile source fleet
into one utilizing zero and near-zero emission technologies to
meet air quality and climate change goals. This document was
prepared to support heavy-duty truck-related technology
assessments heavy-duty fuel cell electric vehicles, hybrid
electric vehicles, battery electric vehicles, and diesel and
natural gas engines. It applies to Class 2b through Class 8
heavy-duty vehicles with greater than 8,500 pounds gross vehicle
weight rating. It presents a description of the truck and bus
sector including truck types, vocations, emissions, and economics
of the trucking and truck and engine manufacturing industries.
Sources used in the draft supporting information included
published reports, research papers, and ARB inventory data.
The draft supporting information for technology assessments can
be viewed and downloaded from the ARB's technology and fuels
assessment webpage at:
http://www.arb.ca.gov/msprog/tech/techreport/t&b_sector_description.pdf
If you have questions regarding the draft supporting information,
please contact the following:
Mr. Inder Atwal, Air Pollution Specialist, at 916-445-0281, or at
Inder.Atwal@arb.ca.gov.
Background: California has made substantial progress in reducing
emissions from mobile sources, but further reductions are needed
to meet California's air quality and climate goals. These goals
include:
•Meeting 2023 and 2031 ambient ozone air quality standards, which
staff estimates will require an overall 80 percent reduction in
NOx emissions below today's levels in the South Coast air basin,
with substantial reductions needed in the San Joaquin Valley and
other non-attainment areas of the state as well;
•Meeting the newly proposed federal ozone standard;
•Reducing greenhouse gas (GHG) emissions to 1990 levels by 2020;
•Achieving a 40 percent reduction in GHG emissions from 1990
levels by 2030;
•Achieving an 80 percent reduction in GHG emissions from 1990
levels by 2050;
•Reducing petroleum use in cars and trucks by up to 50 percent by
2030; and
•Producing at least 50 percent of electricity from renewable
sources by 2030.
Heavy-duty vehicles greater than 8,500 pounds emit about
one-fifth of the total GHG emissions associated with
transportation sources in the State, which is about eight percent
of the statewide total. In addition, these vehicles account for
33 percent of NOx emissions from all statewide sources. Because
trucking emissions are such a significant source of GHG and
criteria pollutant emissions, achieving reductions within the
trucking sector is a key component in the strategy to meet
California's climate and air quality goals.
The technology assessments were prepared by staff from ARB, along
with the South Coast Air Quality Management District staff. They
were discussed at workshops in September 2014 and at the December
2014 ARB board meeting. More information on the assessments is
available at ARB's website at
http://www.arb.ca.gov/msprog/tech/tech.htm. Draft technology
assessments reports were released for public comments and are
available on ARB's website at
http://www.arb.ca.gov/msprog/tech/report.htm.
California is in a drought emergency.
Visit www.SaveOurH2O.org for water conservation tips.
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The energy challenge facing California is real. Every Californian
needs to take immediate action to reduce energy consumption. For
a list of simple ways you can reduce demand and cut your energy
costs, visit the Flex Alert website at www.flexalert.org .
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