Light-Duty
- Refueling Vapor Recovery: A History of U.S. Experience with ORVR and Stage II (February 2020) (PDF 1.44 MB)
- A Statutory and Regulatory History of the U.S. Evaporative Requirements for Motor Vehicles and Analysis of European Evaporative Emission Requirements (February 2020) (PDF 1.08 MB)
- Comparison of On-Vehicle and Service Station Technologies to Control Vehicle Refueling Emissions in Brazil (August 2017) (PDF 227 KB)
- Rationale for Including ORVR as a Component within China V to Stabilize and Reduce the Rapidly Increasing VOC Inventory Caused by Evaporative Emissions (February 2015) (PDF 628 KB)
- LEV III and Tier 3 Exhaust Emission Control Technologies for Light-Duty Gasoline Vehicles (February 2015) (PDF 721 KB)
- Aftermarket Converter Technology for Gasoline Light-Duty Vehicles (November 2014) (PDF 593 KB)
- Emission Control of Two- and Three-Wheel Vehicles (September 2014) (PDF 304 KB)
- Reducing Evaporative Emissions - The Largest Source of VOC Emissions Leading to Haze, PM2.5 and Ozone Formation in China's Major Cities: A Macro and Micro Analysis with Information on International Experience and Related Implications for China (June 2014) (PDF 2.6 MB) / Chinese translation (PDF 2.2 MB)
- Evaporative Emission Control Technologies for Gasoline Powered Vehicles (December 2010) (PDF 740 KB)
- Tier 2/LEV II Emission Control Technologies for Light-Duty Gasoline Vehicles (June 2007) (PDF 472 KB)
- MECA Demonstration Program of Advanced Emission Control Systems for Light-Duty Vehicles (May 1999) (PDF 150KB)
Heavy-Duty
- Technology Feasibility for Heavy-Duty Diesel Trucks in Achieving 90% Lower NOx Standards in 2027 (February 2020) (PDF 827 KB) / Report Fact Sheet (PDF 281 KB)/Chinese translation (PDF 1.24 MB)
- Characterization of Medium- and Heavy-Duty Vehicle Operations from In-Use Data: An Analysis of Starts, Soak Time, and Warm-Up Duration - MECA-funded report by NREL (November 2019) (PDF 5.8 MB)
- Technology Feasibility for Model Year 2024 Heavy-Duty Diesel Vehicles in Meeting Lower NOx Standards (June 2019) (PDF 784 KB)
- Emission Control Technologies for Diesel-Powered Vehicles (December 2007) (PDF 811 KB)
- Catalyst-Based Diesel Particulate Filters and NOx Adsorbers: A Summary of the Technologies and the Effects of Fuel Sulfur (August 2000) (PDF 388KB)
- Demonstration of Advanced Emission Control Technologies Enabling Diesel-Powered Heavy-Duty Engines to Achieve Low Emission Levels (June 1999) (PDF 352KB)
Off-Road
Efficiency Technologies
Fuels
- The Impact of Gasoline Fuel Sulfur on Catalytic Emission Control Systems (June 2013) (PDF 542 KB)
- Impacts of MMT Use in Unleaded Gasoline on Engines, Emission Control Systems, and Emissions - Sierra Research (August 2008) (PDF 13.1 MB)
- The Case for Banning Lead in Gasoline (January 2003) (PDF 495 KB)
Stationary Engines
Other
- Air Quality Benefits of a Future National Heavy-Duty Truck Standard (Project Summary) (PDF 315 KB)
- Part 1: MOVES Inventory Modeling of a Potential Cleaner Trucks Initiative Scenario (June 2020) (PDF 2.8 MB)
- Part 2: Air Quality Model Analysis of a Cleaner Trucks Initiative Scenario (June 2020) (PDF 4 MB)
- NOx Emission Reduction Benefits of Future Potential U.S. Mobile Source Regulations (June 2018) (PDF 515 KB)
- Health Effects of Particulate Air Pollution (October 14, 2014) (PDF 426 KB)
- Ultrafine Particulate Matter and the Benefits of Reducing Particle Numbers in the United States (July 2013) (PDF 2.3 MB) / Executive Summary (Mandarin translation) (PDF 152 KB)