EPA and NHTSA Issue a Supplemental
Notice in the Process for Setting
Future Greenhouse Gas and Fuel
Economy Standards for Passenger
Cars and Light Trucks
The U.S. Environmental Protection Agency (EPA) and the
National Highway Traffic Safety Administration (NHTSA),
on behalf of the U.S. Department of Transportation, are releasing a
joint Supplemental Notice of Intent (NOI) to begin developing new
standards for greenhouse gas (GHG) and fuel economy for light'
duty vehicles in model years (MY) 2017*2025. This Supplemental
Notice follows the joint NOI released on September 30, 2010,1 and
is meant to aid the public's understanding of many key issues facing
the agencies as we continue the process of developing the upcoming
rulemaking.
Supplemental Notice of Intent
This Supplemental NOI highlights many of the key comments received in response
to the September NOI, and to the Interim Joint Technical Assessment Report
(TAR) issued by EPA, NHTSA, and the California Air Resources Board (GARB)
associated with that Notice.2 This Supplemental NOI also discusses the agencies'
plans for many of the key technical analyses that will be undertaken in developing
the upcoming proposed rulemaking.
1 See 75 FR 62739 (October 13, 2010).
2 For more information on the September NOI and TAR, please see "EPA and NHTSA
Announce a First Step in the Process for Setting Future Greenhouse Gas and Fuel Economy
Standards," EPA-420-F-10-051); http://www.epa.gov/otaq/climate/regulations.htm or "DOT
and EPA Announce Intent to Propose CAFE and GHG Emission Standards, 2017 and Be-
yond" ; www.nhtsa.gov/fuel-economy
SEPA
United States
Environmental Protection
Agency
Office of Transportation and Air Quality
EPA-420-F-10-059
November 2010
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In response to the September NOI and TAR, the agencies received public comments from more
than 30 organizations and more than 100,000 individuals. In addition, EPA, NHTSA, and
GARB met individually with the ten largest automobile original equipment manufacturers, as
well as environmental non-governmental organizations, and representatives of state and local
governments. The Supplemental Notice summarizes the many of the key themes that we heard
from stakeholders, both in the public comments and in the outreach meetings.
In the September NOI, EPA and NHTSA stated that we would continue to analyze potential
GHG and fuel economy standards for MYs 2017-2025, both by developing and reviewing addi-
tional technical data and information, and by considering additional stakeholder input. At that
time, we planned to update our assessment for the Supplemental NOI. However, we have not
completed any new analyses to date, and are not updating the assessment at this time. Instead
we will continue to conduct analyses as we move forward in developing the proposed rulemak-
ing. Many public comments supported the agencies' plans, noted in the September NOI, as to
types and scope of analyses to be conducted for the proposal. Therefore, the agencies are moving
forward with this work, and describe many of our planned key analyses in the Supplemental
Notice. We also plan to continue working with GARB in our technical assessments of potential
standards, and to continue extensive dialogue with stakeholders.
The September NOI and TAR were issued in response to a May 21, 2010 Presidential Memo-
randum which requested EPA and NHTSA to develop a coordinated National Program to
improve fuel efficiency and to reduce GHG emissions of light-duty vehicles for MYs 2017-2025,
and to work with California in developing a technical assessment to inform this rulemaking.
This program would build upon the historic success of the National Program for MYs 2012-2016
vehicles, issued in April 2010
Upcoming Proposed Rule
As EPA and NHTSA proceed in developing the proposed rulemaking, we plan to continue
our ongoing dialogue with stakeholders, and we welcome additional data and information that
can inform our rulemaking efforts. The public dockets will remain open for the duration of
the rulemaking. Further, EPA and NHTSA expect to continue working closely with GARB in
developing the underlying technical assessments that will inform our future proposed standards.
The agencies currently expect to issue a proposed rulemaking by September 30, 2011, and a final
rulemaking by July 31, 2012,
For More Information
You can access the NOI and the TAR at EPA's web site at:
www.epa.gov/otaq/climate/regulations.htm
or at NHTSA's website at:
www.nhtsa.gov/fuel-economy
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For additional information, please contact:
EPA's Office of Transportation and Air Quality,
Assessment and Standards Division
Email: ASDinfo@epa.gov
(734) 214-4636
or:
NHTSA
Office of Chief Counsel
(202) 366-2992
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