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The purpose of this email is to inform the public of the release
and availability of the revised ARB Technical Options Document
at:  http://www.arb.ca.gov/railyard/ted/ted.htm . 

In December 2008, staff released a draft “Technical Options to
Achieve Additional Emissions and Risk Reductions from California
Locomotives and Railyards” document (Technical Options Document)
which provided a technical assessment of 37 options that could
provide further locomotive and railyard emissions reductions. 
The options were evaluated based on their ability to provide
potential emissions reductions beyond existing U.S. EPA and ARB
regulations and agreements.  The 37 options were evaluated based
on the following criteria:  technical feasibility, potential
emissions reductions, costs, and cost-effectiveness.  Since
December 2008, staff has incorporated public comments and
provided updated information to be released in this revised
Technical Options Document.  

Staff also acknowledges that the data used in this report
represents a snapshot in time.  Elements such as locomotive fleet
composition data are fluid and are influenced by many factors. 
In addition, other data used to evaluate technological
feasibility, potential emission reductions, and costs are also
fluid and subject to change.  The staff expects to provide
updates as technology developments and demonstration project
results warrant.  

Contact Information

If you have questions about the Technical Options Document,
please call Mr. Mike Jaczola, Staff Air Pollution Specialist,
Engineering Evaluation Section at (916) 327-5607 or email:
mjaczola@arb.ca.gov or Mr. Harold Holmes, Manager, Engineering
Evaluation Section, at (916) 324-8029 or e-mail:
hholmes@arb.ca.gov 


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