Science & Technology
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Model Year 2008-2012 Fuel Economy Label
A description of the revised fuel economy label that was introduced in September 2008 and provides the basic fuel economy estimates.
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EPA Urban Dynamometer Driving Schedule (UDDS)
The page contains a graph of the EPA Urban Dynamometer Driving Schedule (UDDS).
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EPA US06 or Supplemental Federal Test Procedure (SFTP)
The page contains a graph of the EPA US06 or Supplemental Federal Test Procedure (SFTP) driving cycle.
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LA92 "Unified" Dynamometer Driving Schedule
The page contains a graph of the LA92 “Unified” Dynamometer Driving Schedule.
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EPA Federal Test Procedure (FTP)
This page contains a graph of the EPA Federal Test Procedure (FTP) driving cycle.
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EPA SC03 Supplemental Federal Test Procedure (SFTP) with Air Conditioning
The page contains a graph of the EPA SC03 Supplemental Federal Test Procedures (SFTP) with air conditioning driving cycle.
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Caterpillar Technology—Marine Engine Emissions Upgrade Group Kit #6 (Tier 1 to Tier 2)
This retrofit technology is included on EPA's Verified Technologies List for Clean Diesel.
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Caterpillar Technology—Marine Engine Emissions Upgrade Group Kit #5 (EUI to Tier 2)
This retrofit technology is included on EPA's Verified Technologies List for Clean Diesel.
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Caterpillar Technology—Marine Engine Emissions Upgrade Group Kit #3 (MUI to Tier 2)
This retrofit technology is included on EPA's Verified Technologies List for Clean Diesel.
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Instrument Air Controllers
Natural gas-powered pneumatic controllers can be converted to instrument air-powered pneumatic controllers by substituting the pressurized natural gas with compressed air.
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Caterpillar Technology—Marine Engine Emissions Upgrade Group Kit #2 (MUI to Tier 1)
This retrofit technology is included on EPA's Verified Technologies List for Clean Diesel.
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Caterpillar Technology—Emissions Upgrade Group (model 3406)
This retrofit technology is included on EPA's Verified Technologies List for Clean Diesel.
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South Platte Urban Waters Federal Partnership Workplan
South Platte Urban Waters Federal Partnership Workplan
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Chemical Speciation Network - Quality Assurance
information on the Quality Assurance program for the PM2.5 Chemical Speciation Network (CSN).
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Urban Waters and the Blue River (Kansas City, Missouri)
This page provides background information on the Middle Blue River area one of the 19 Designated Urban Waters Locations.
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Middle Rio Grande - Slides from May 1, 2017
Presentation on the Middle Rio Grande Urban Waters Partnership, May 1, 2017
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Chemical Speciation Network - Parameters Reported to the Air Quality System (AQS)
This page includes measurements made in the chemical speciation network
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Contacts for Grand River (Grand Rapids)
Contact information for Grand Rapids Grand River urban waters partnership
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2017 AirToxScreen Technical Support Document
A technical overview of methods used for EPA's AirToxScreen
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Photochemical Assessment Monitoring Station (PAMS) Instrument Training (2016 NAAMC)
PAMS instrument training to support re-engineered PAMS program.