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(All documents are provided in (PDF) unless
otherwise indicated.)
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Fleet Average Calculators (Revised 2/4/09):
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.
This fleet average calculators with hours will allow the user to
insert the hours of operation for each vehicle, and weighs their fleet average towards the vehicles used the most.
This provision may help fleets who have newer equipment they use substantially more than their older equipment. To take
advantage of this option when complying with the regulation, the fleet must report the annual hours of use from a non-resettable
hour meter for each vehicle. The calculators with hours also reflect the extension of double credit for retrofits to January 1, 2010.
Choose the appropriate calculator for your fleet size (medium / large or small) and whether you would like to use the
hours in fleet average option.
THESE CALCULATORS ARE FOR YOUR OWN PLANNING USE - THEY ARE NOT FOR REPORTING. TO REPORT,
USE ARB's ONLINE REPORTING SYSTEM
Online Reporting Link
For the Medium / Large fleets calculator - without hours
For the Medium / Large fleets calculator - with hours of use provision
For the Small fleets calculator.
Small fleet calculator with hours coming soon.
(Contact Elizabeth Yura at eyura@arb.ca.gov with questions.)
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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