EPA Regulations
Regulation Emissions Components
EPA07 (Reduction of nitrogen
oxides (NOx) emissions to 1.1
g/bhp-hr, and particulate matter
emissions to 0.01 g/bhp-hr)
Aftertreatment device (ATD) containing a diesel particulate filter that traps soot and
ash.
*
EPA10 (Reduction of NOx
emissions to 0.2 g/bhp-hr)
EPA07-type ATD, with additional selective catalyst reduction (SCR) technology that
utilizes diesel exhaust fluid (DEF) to convert NOx to nitrogen and water vapor.
GHG14 (Reduction of greenhouse
gas emissions)
Fuel efficiency components including, but not limited to, engines, tires, aerodynamic
components, vehicle speed limiters, and idle reduction timers specifically designed to
meet regulatory fuel efficiency and greenhouse gas emissions standards.
GHG17
Fuel efficiency components including, but not limited to, engines, tires, aerodynamic
components, vehicle speed limiters, and idle reduction timers specifically designed to
meet regulatory fuel efficiency and greenhouse gas emissions standards.
GHG21
GHG14/17 components plus additional components including, but not limited to,
transmissions, axles, predictive technologies, idle reduction technologies for
vocational vehicles, and tire pressure monitoring systems.
*
Cummins and Detroit ATD’s are also equipped with a diesel oxidation catalyst to break down pollutants.
Table 1.1, EPA Regulations
Emission Regulations by Model Year
Model Year Engine Regulation Vehicle Regulation
2007–2009 EPA07 N/A
2010–2012 EPA10 N/A
2013–2015 EPA10, GHG14 GHG14
2016 EPA10, GHG17 GHG14
2017–2020 EPA10, GHG17 GHG17
2021–and later EPA10, GHG21 GHG21
Table 1.2, Emission Regulations by Model Year
It is a violation of U.S. federal law to alter exhaust
plumbing, ATS, or other components in any way that
would bring the engine/vehicle out of compliance with
certification requirements [Ref: 42 U.S.C. S7522(a)
(3)]. It is the owner’s responsibility to maintain the
vehicle so that it conforms to EPA regulations.
Vehicle Emission Control Information
Label
Model year 2013 and later vehicles meet require-
ments as specified by GHG14, GHG17 and GHG21
regulations, respectively. These vehicles are
equipped with components that increase fuel effi-
ciency and reduce greenhouse gas (GHG) emis-
sions. Components may include, but are not limited
to, low-rolling resistance tires; aerodynamic devices
such as hood, cab side extenders, and fuel tank fair-
ings; vehicle speed limiters; and idle shutdown tim-
ers.
A Vehicle Emission Control Information Label is lo-
cated on the left-hand door. See
Fig. 1.6. Among
other GHG relevant information the label indicates
the emission model year of the vehicle. As this label
is about meeting United States federal requirements,
it is printed in English.
It is the owner’s responsibility to maintain the vehicle
so that it conforms to U.S. EPA and NHTSA
regulations.
Noise Emission Control Labels
For vehicles manufactured for operation in the United
States, an English language EPA noise emission
control label is applied to attest that the vehicle con-
forms to United States EPA regulations for noise.
See
Fig. 1.14.
For vehicles manufactured for operation in Mexico, a
Spanish language Normas Oficiales Mexicanas
(NOM) vehicle noise emission control label attesting
Vehicle Identification
1.5
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