California Air Resources Board

1998 Locomotive NOx Fleet Average Emissions Agreement in the South Coast Air Basin

The locomotive summary files (available in Microsoft Excel Format, see below) provide the emissions (Tier level) associated with every locomotive that visited the South Coast Air Basin in each calendar year. 

2021 Calendar year 

• UPRR Locomotive Summary
• BNSF Locomotive Summary

2020 Calendar Year

• UPRR Locomotive Summary
• BNSF Locomotive Summary

2019 Calendar Year

• UPRR Locomotive Summary
• BNSF Locomotive Summary

2018 Calendar Year

• UP Locomotive Summary (PDF - 123 KB)
• UP Locomotive Summary Resubmitted 12/18/2020 (PDF - 62 KB)
• BNSF Locomotive Summary (PDF - 135 KB)

2017 Calendar Year

• UP Locomotive Summary (PDF - 124 KB)
• BNSF Locomotive Summary (PDF - 84 KB)

2016 Calendar Year

• UP Locomotive Summary (Excel - 278 KB)
• BNSF Locomotive Summary (Excel - 185 KB)

2015 Calendar Year

• UP Locomotive Summary (Excel - 430 KB)
• BNSF Locomotive Summary (Excel - 70 KB)

2014 Calendar Year

• UP Locomotive Summary (PDF - 270 KB)
• BNSF Locomotive Summary (PDF - 63 KB)

2013 Calendar Year

• UP Locomotive Summary (Excel - 66 KB)
• BNSF Locomotive Summary (Excel - 40 KB)

2012 Calendar Year

• UP Locomotive Summary (Excel - 28 KB)
• BNSF Locomotive Summary (Excel - 89 KB)

2011 Calendar Year

• UP 2011 Locomotive Summary (Excel - 134 KB)
• BNSF 2011 Locomotive Summary (Excel - 49 KB)

2010 Calendar Year

• UP 2010 Locomotive Summary (Excel - 134 KB)
• BNSF 2010 Locomotive Summary (Excel - 49 KB)