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(All documents are provided in (PDF) unless
otherwise indicated.)
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| Fleet Average Calculators (Revised 2/08/08):
The Fleet Average Calculators are Excel files designed to assist fleet owners in calculating
a fleet's Fleet Average and Fleet Average Targets, based on the equipment model year and horsepower input. The calculators
allow fleets to experiment with different turnover, repower, and retrofit strategies to plan
for compliance with the
in-use off-road diesel vehicle regulation. There is one calculator for large / medium fleets and
one for small fleets. Small fleets are municipalities, non-profits, and businesses with less than or equal to 2,500
horsepower total of affected vehicles. Municipalities in rural low-population counties are small fleets, regardless of total
horsepower.
For the Medium / Large fleets calculator
For the Small fleets calculator.
(Contact Elizabeth Yura at eyura@arb.ca.gov with questions.) |
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Applications for Membership in the Off-road Implementation Advisory Group (ORIAG):
ARB staff would like to form an off-road implementation advisory group (ORIAG),
which will be an informal committee established by staff to assist it in implementing
the in-use off-road diesel vehicle regulation.
We would like to invite interested parties to apply for
membership in the ORIAG. |
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Request for Informal Feedback on Revised Regulatory Language: At
the July 26, 2007, Air Resources Board meeting, the Board directed staff to make several modifications to the In-Use
Off-road Diesel Vehicle regulation, in addition to the changes staff had proposed. The memorandum provides
draft regulatory language implementing the Board's direction. |
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Revised Proposed Regulatory Language:
On July 25, 2007, ARB staff proposed additional changes to the proposed In-Use Off-road Diesel Vehicle regulation,
which was initially published on April 5, 2007 and revised on May 23, 2007. These additional changes were adopted
by the Board on July 26, 2007. |
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Notice of staff's suggested changes to the Proposed Regulation for In-Use
Off-Road Diesel Vehicles: ARB staff proposed several modifications
to the proposed In-Use Off-Road Diesel Vehicle regulation, which was initially published on April 5, 2007. The
suggested modifications were presented to and considered by the Air Resources Board on Friday, May 25, 2007. These
modifications are contained within the "Staff Suggested Changes to be Presented at Board Hearing" document. |
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Statewide Off-road Regulatory Cost / Benefit Model: An updated version the Statewide Off-road Regulatory Cost/Benefit Model has been automated
to evaluate multiple fleets in a single program. The model is a Visual Basic module that runs within an Access
database and utilizes Access queries. The model is described in detail in Appendix H of the April 2007 Technical
Support Document. The zipped file is approximately 15 MB, the uncompressed file is approximately 60 MB but will
substantially increase in size as it is used. The output of this model only includes equipment capital costs. [NOTE: This model is computationally
intensive and may exceed the limits of a computer's operating system depending on how many vehicles are run.]
Statewide Off-Road Costs Spreadsheet: This spreadsheet uses the output from the Statewide Off-Road Regulatory Cost / Benefit
Model to calculate total statewide costs. These include reporting, maintenance, and other costs. . |
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Table of off-road engine PM and NOx emission factors by model year and horsepower.
These emission factors are for calculating PM and NOx fleet averages. |
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Combined ARB and U.S. EPA standards for off-road compression ignition engines. |
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Statistics on Responses to Off-Road Equipment (In-Use) Survey (as of 2/15/2006): |
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| Total On-Line Survey Submittals: |
318
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| Total Hard Copy Survey Submittals: |
233
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| Total Responses to Survey: |
551
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Letter from the ARB to mine owners and operators in California. |
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Letter from the ARB to solid waste and recycing facilities in California. |
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Reliability of DPF-Systems: Experience with 6000 Applications of the Swiss
Retrofit Fleet. |
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Letter to 79,000 California Licensed Contractors. |
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City of Houston Diesel Field Demonstration Project. |
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New York City Construction Ordinance. |
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Health Effects of Particulate Matter and Ozone Air Pollution. |
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Swiss Clean Air Ordinance for Construction. |
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California Public Fleet Heavy-Duty Vehicle and Equipment Inventory (TIAX
Report) |
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Documents and Files