EPA/NHTSA (Environmental Protection Agency/National Highway Traffic Safety Administration). 2010. Greenhouse Gas Emissions Standards and Fuel Efficiency Standards for Medium- and Heavy-Duty Engines and Vehicles. EPA-HQ-OAR-2010-0162. NHTSA-2010-0079. FRL-9219-4. November 30.
EPA/NHTSA. 2011. Greenhouse Gas Emissions Standards and Fuel Efficiency Standards for Medium- and Heavy-Duty Engines and Vehicles. Federal Register, Vol. 76, No. 179, September 15. Available at http://www.nhtsa.gov/staticfiles/rulemaking/pdf/cafe/2011-20740.pdf.
Navistar. 2008. Navistar Awarded Department of Energy Funding to Develop Aerodynamic Trailers. Available at http://ir.navistar.com/release detail.cfm?ReleaseID=354505.
NESCCAF/ICCT (Northeastern States Center for a Clean Air Future/International Council on Clean Transportation). 2009. Reducing Heavy-Duty Long Haul Combination Truck Fuel Consumption and CO2 Emissions. Miller, ed. October.
NRC (National Research Council). 2008. Review of the 21st Century Truck Partnership. Washington, D.C.: The National Academies Press.
NRC. 2010. Technologies and Approaches to Reducing the Fuel Consumption of Medium- and Heavy-Duty Vehicles. Washington, D.C.: The National Academies Press.
ORNL (Oak Ridge National Laboratory). 2009. Effect of Wide-Based Single Tires on Class-8 Combination Fuel Efficiency, Oscar Franzese, Helmut Knee, and Lee Slezak. October 28.
TIAX. 2009. Assessment of Fuel Economy Technologies for Medium- and Heavy-Duty Vehicles. Report prepared for the National Academy of Sciences by TIAX LLC. July 31. Cupertino, Calif.
TT (Transport Topics). 2011. Low Rolling Resistance Tires Gain Traction with Carriers Seeking to Save Fuel, Money. S. Bennett. June 20.