SmartWay*
        MENTAL PROTECTION AGENCY »
 U.S. ENVIRONMENTAL PROTECTION AGENCY
Overview of 2OI5  Updates  to the  EPA-
designated  SmartWay Trailer
  EPA's SmartWay Transport
  Program is a market-driven
  partnership to help busi-
  nesses move goods in the
  cleanest, most efficient
  way possible. By providing a
  consistent set of tools and
  information needed to make
  informed transportation
  choices, SmartWay enables
  companies across the country
  to benchmark performance
  data in ways that protect our
  environment,encourage eco-
  nomic vitality, and enhance
  our nation's energy security.
  EPA's SmartWay Technology
  program helps carrier fleets
  make informed business
  decisions to save fuel and
  improve their supply chain
  efficiency.
In 2014, EPA's SmartWay Technology Program released in interim form updates to it's trailer
designation and trailer aerodynamic equipment verification programs. These updates were
finalized in 201 5 to allow trucking fleets to better identify trailer equipment with demonstrated fuel
savings and to offer manufacturers more test flexibility.


The 2015 updates include:
     • Incorporating multiple aerodynamic performance evaluation methods;
     • Expanding to include large refrigerated trailers in addition to dry vans;
     • Using performance-based categories for aerodynamic devices; and,
     • Adding a  new SmartWay Elite Trailer category.
Overall, EPA's SmartWay trailer program uses robust testing protocols to verify the fuel savings of
trailer aerodynamic devices (e.g., trailer skirts, tails, noses, under-trailer devices) and low-rolling
resistance tires to be used on 53-foot trailers.
EPA has expanded its aerodynamic testing-verification pathways to include an enhanced track
test, wind tunnel testing, coastdown testing, and computational fluid dynamics (CFD). If trailer
aerodynamic devices demonstrate fuel savings in SmartWay testing, they are identified as
SmartWay-verified  and are listed, along with SmartWay-verified low-rolling resistance tires, on the
SmartWay website's technology verification page (www.epa.gov/smartway/forpartners/technology.htm).
EPA added 53-foot refrigerated trailers along with dry vans to its types of designated trailers.
EPA's designation of 53-foot box dry van and  refrigerated trailers gives fleet managers additional
confidence that fuel saving technologies will perform for all of their 53-foot box trailers.
EPA has replaced device-based categories with performance thresholds of 1 %, 4%, 5% and 9%
or more fuel savings over traditional trailers. Using the SmartWay aerodynamic device verification
web page, fleet managers can select individually-verified devices from a performance category to
total the fuel savings threshold for their trailer to qualify as SmartWay-designated.  (www.epa.gov/
smartway/forpartners/technology.htm)
There are two designation-levels for trailers in  the SmartWay program:
     • An EPA-designated "SmartWay" trailer is a 53-foot box trailer (dry van or  refrigerated)
       used in long-haul operation, equipped with SmartWay-verified low-rolling resistance tires
       and SmartWay-verified aerodynamic devices. A SmartWay trailer can save a total of 6%
       or more fuel over traditional trailers. At least 5% of the fuel savings result from reducing
       wind drag with one or more EPA-verified aerodynamic devices. An additional 1% or
       greater fuel savings come from reducing rolling resistance with EPA-verified tires. Atypical
       Class 8 tractor-trailer combination truck in long-haul operation  using a SmartWay trailer
       could save about 1,000 gallons of diesel annually.
                       •  An EPA-designated "SmartWay Elite" trailer is a 53-foot box
                         trailer (dry van or refrigerated) used in long-haul operation,
                         equipped with  SmartWay-verified low-rolling resistance tires and
                         a higher-level of SmartWay-verified aerodynamic devices. A
                         SmartWay Elite trailer can save a total of 1 0% or more fuel
                         over traditional trailers. At least 9% of the fuel savings result from
                         reducing wind drag with  a combination of 2 or more EPA-verified
                         aerodynamic devices. An additional 1 % or greater fuel savings
                         result from reducing  rolling resistance with EPA-verified tires.
                         Atypical Class 8 tractor-trailer combination truck in long-haul
                         operation using a SmartWay Elite trailer could save about 1,700
                         gallons of diesel annually.

                                                                                                     Continued
                                                 U.S. EPA SmartWay | EPA-420-F-I5-009 | www.epa.gov/smartway

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      SmartWay*
      MENTAL PROTECTION AGENCY »
U.S. ENVIRONMENTAL PROTECTION AGENCY
Overview of 2015 Updates to the EPA-
designated SmartWay Trailer
Continued
   SmartWay and SmartWay Elite trailers are used by trucking fleets to move freight in the most fuel-efficient way
   possible and reduce greenhouse gas emissions.


          Summary of EPA-designated SmartWay Trailer Configurations

Trailer Types
Aerodynamic Dei/ices
Lou/ Rolling-resistance Tires
Total Fuel Savings
Per Trailer Annual Fuel Savings
SmartWay Trailers
53-foot box trailers (either dry vans
or refrigerated trailers) used for
long haul operations
One or more SmartWay-verified
aerodynamic devices totaling at
least 5% fuel savings
SmartWay-verified low-rolling
resistance tires totaling at least 1 %
fuel savings
6% or greater
Approximately 1,000 gallons of
diesel per year
SmartWay Elite tTrailers
53-foot box trailers (either dry vans
or refrigerated trailers) used for
long haul operations
Combination of two or more
SmartWay-verified aerodynamic
devices totaling at least 9% fuel
savings
SmartWay-verified low-rolling
resistance tires totaling at least 1 %
fuel savings
1 0% or greater
Approximately 1,700 gallons of
diesel per year

   For more information: www.epa.gov/smartway/forpartners/technology.htm or Tech_Center@epa.gov
                                    U.S. EPA SmartWay | EPA-420-F-15-009 | www.epa.gov/smartway

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