Technical Evaluation of Options to Reduce Locomotive and Railyard Emissions

This page last reviewed August 31, 2009
Preliminary Draft - For Discussion Purposes Only

Technical Options to Achieve Additional Emissions and Risk Reductions from California Locomotives and Railyard
(Draft Report: 
PDF - 2.9mb )

      Executive Summary (PDF - 53k)

      I.  Introduction (PDF - 150k)

      II.  Locomotive Options (PDF - 358k)

      III.  Railyard Options (PDF - 250k)

      IV.  Advanced Systems Options for Locomotives and Railyards (PDF - 570k)

      V.  Railyard Operational and Physical Changes (PDF - 97k)

      Appendices (PDF - 1.5mb)

Public Comments:

Alternative Hybrid Locomotive Technologies (Tom Mack, AHL-TECH) - (PDF - 16k)
The California Railroad Industry (PDF - 1.8mb)
South Coast Air Quality Management District (PDF - 1.4mb)
Southwest Research Institute (Steve Fritz, SwRI) (PDF - 3.1mb)
Enviromental, Communities, and other organizations (PDF - 165k)

List Serve

If you would like to subscribe to the list server for "Railyard" in order to be advised of changes to this area of the website, this link will explain how you can subscribe.

For more information about the ARB's Techinical Evaluation Document, please contact Harold Holmes at (916) 324-8029 or via email at

If you have comments about this webpage, please refer them to Hector Castaneda at (916) 324-0367 or via email at

Railyard Emission Reduction Program