[Federal Register Volume 78, Number 56 (Friday, March 22, 2013)]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 2013-06657]
ENVIRONMENTAL PROTECTION AGENCY
Draft Guidance for E85 Flexible Fuel Vehicle Weighting Factor for
Model Years 2016-2019 Vehicles Under the Light-Duty Greenhouse Gas
AGENCY: Environmental Protection Agency (EPA).
SUMMARY: EPA is requesting comment on draft EPA guidance to auto
manufacturers for weighting the greenhouse gas (GHG) emissions of a
flexible fuel vehicle operating on E85 with the GHG emissions of the
vehicle operating on conventional gasoline, when calculating the
compliance value to use for EPA's GHG emissions standards. EPA also
invites comment on the analysis used by EPA to determine the weighting
DATES: Comments must be received on or before April 22, 2013.
ADDRESSES: Submit your comments, identified by Docket ID No. EPA-HQ-
OAR-2013-0120, by one of the following methods:
On-Line at http://www.regulations.gov: Follow the On- Line
Instructions for Submitting Comments.
Fax: (202) 566-1741.
Mail: Air and Radiation Docket, Docket ID No. EPA-HQ-OAR-
2013- 0120, U.S. Environmental Protection Agency, Mailcode: 6102T, 1200
Pennsylvania Avenue NW., Washington, DC 20460. Please include a total
of two copies.
Hand Delivery: EPA Docket Center, Public Reading Room, EPA
West Building, Room 3334, 1301 Constitution Avenue NW., Washington, DC
20460. Such deliveries are only accepted during the Docket's normal
hours of operation, and special arrangements should be made for
deliveries of boxed information.
On-Line Instructions for Submitting Comments: Direct your comments
to Docket ID No. EPA-HQ-OAR-2013- 0120. EPA's policy is that all
comments received will be included in the public docket without change
and may be made available online at http://www.regulations.gov,
including any personal information provided, unless the comment
includes information claimed to be Confidential Business Information
(CBI) or other information whose disclosure is restricted by statute.
Do not submit information that you consider to be CBI or otherwise
protected through http://www.regulations.gov or email.
The http://www.regulations.gov Web site is an ``anonymous access''
system, which means EPA will not know your identity or contact
information unless you provide it in the body of your comment. If you
send an email comment directly to EPA without going through http://www.regulations.gov, your email address will automatically be captured
and included as part of the comment that is placed in the public docket
and made available on the Internet. If you submit an electronic
comment, EPA recommends that you include your name and other contact
information in the body of your comment and with any disk or CD-ROM you
submit. If EPA cannot read your comment due to technical difficulties
and cannot contact you for clarification, EPA may not be able to
consider your comment. Electronic files should avoid the use of special
characters, any form of encryption, and be free of any defects or
viruses. For additional information about EPA's public docket visit the
EPA Docket Center homepage at http://www.epa.gov/epahome/dockets.htm.
Materials relevant to this proceeding are contained in the Air and
Radiation Docket and Information Center, maintained in Docket ID No.
EPA-HQ- OAR-2013-0120. Publicly available docket materials are
available either electronically through http://www.regulations.gov or
in hard copy at the Air and Radiation Docket in the EPA Headquarters
Library, EPA West Building, Room 3334, located at 1301 Constitution
Avenue NW., Washington, DC. The Public Reading Room is open to the
public on all federal government work days from 8:30 a.m. to 4:30 p.m.;
generally, it is open Monday through Friday, excluding holidays. The
telephone number for the Reading Room is (202) 566-1744. The Air and
Radiation Docket and Information Center's Web site is http://www.epa.gov/oar/docket.html. The electronic mail (email) address for
the Air and Radiation Docket is: firstname.lastname@example.org, the telephone
number is (202) 566-1742, and the fax number is (202) 566-9744. An
electronic version of the public docket is available through the
federal government's electronic public docket and comment system. You
may access EPA dockets at http://www.regulations.gov. After opening the
http://www.regulations.gov Web site, enter EPA-HQ-OAR-2013-0120 in the
``Enter Keyword or ID'' fill-in box to view documents in the record.
Although a part of the official docket, the public docket does not
include Confidential Business Information (CBI) or other information
whose disclosure is restricted by statute.
FOR FURTHER INFORMATION CONTACT: Roberts French, Environmental
Protection Specialist, Office of Transportation and Air Quality,
Compliance Division, U.S. Environmental Protection Agency, 2000
Traverwood Drive, Ann Arbor, MI 48105. Telephone: (734) 214-4380. Fax:
(734) 214-4869. Email address: email@example.com.
Under EPA's greenhouse gas (GHG) program for passenger automobiles
and light trucks, starting with the 2016 model year, the regulations
describe two pathways for determining the GHG value for flexible fuel
vehicles (FFVs) that run either on gasoline or on E85 (a fuel mixture
of 85 percent ethanol and 15 percent gasoline). The default approach is
to use the GHG emissions of the vehicle operated solely on gasoline
(see 40 CFR 600.510-12). The alternative is to combine the gasoline and
E85 GHG values together in a way that accounts for real-world use of
E85 by using a weighting factor.\1\ When the weighting factor is used,
the emissions value used for the vehicle model in the fleet average
calculations would be determined by weighting the gasoline and E85
values of the model together using the specified factor (see 40 CFR
\1\ The tailpipe GHG emissions used for compliance with the
CO2 standards described in 40 CFR 86.1818 are the carbon-
containing emissions (generally, CO2, hydrocarbons, and
carbon monoxide), which are summed based on the carbon weight
fraction of each component into a value described in the regulations
as the ``carbon-related exhaust emissions'' (CREE). For simplicity,
however, in this notice we are using the term CO2 instead
of CREE, as CO2 is more broadly understood and makes up
the vast majority of the total carbon emissions from vehicles.
EPA's regulations establish two different approaches that may be
used to determine the value of the weighting factor. Manufacturers may
request that EPA determine and publish by guidance an appropriate value
for the E85 weighting factor based on EPA's assessment of the real-
world use of E85. Alternatively, a manufacturer may
submit data demonstrating the actual real-world use of E85 by its
vehicles. EPA would determine whether the data is adequate and what an
appropriate weighting factor should be for the manufacturer.
In mid-2012, manufacturers requested that EPA provide a weighting
factor to use for 2016 and later model year vehicles. EPA has assessed
the weighting factor that would be appropriate to use and intends to
issue guidance to vehicle manufacturers regarding the E85 weighting
factor (called the F factor) that may be used by manufacturers for
weighting the CO2 of FFVs using E85 and conventional
gasoline. EPA intends to establish the weighting factor for the 2016
model year. The weighting factor may also be used for the 2017-2019
model years unless EPA takes action to revise the factor for the later
model years based on new information or data.
EPA seeks input by the public prior to our issuing final F factor
guidance, and requests comment on the value that we have determined and
on the methodology used to derive this value. We have placed a draft
guidance letter, including a support document attachment that provides
additional background and describes the methodology used by EPA to
determine the weighting factor, in the EPA Air Docket EPA-HQ-OAR-2013-
0120 and available at http://www.epa.gov/otaq/regs/ld-hwy/greenhouse/ld-ghg.htm. The draft guidance letter provides for use of a weighting
factor of 0.2.
Interested parties should submit comments according to the
guidelines described in this notice. After fully considering the
comments we receive, we will issue a final guidance document.
II. Procedures for Public Participation
EPA will keep the record open until April 22, 2013. All information
will be available for inspection at the EPA Air Docket No. EPA-HQ-OAR-
2013-0120. Persons with comments containing proprietary information
must distinguish such information from other comments to the greatest
extent possible and label it as ``Confidential Business Information''
(``CBI''). If a person making comments wants EPA to base its decision
on a submission labeled as CBI, then a non-confidential version of the
document that summarizes the key data or information should be
submitted to the public docket. To ensure that proprietary information
is not inadvertently placed in the public docket, submissions
containing such information should be sent directly to the contact
person listed above and not to the public docket. Information covered
by a claim of confidentiality will be disclosed by EPA only to the
extent allowed, and according to the procedures set forth in 40 CFR
part 2. If no claim of confidentiality accompanies the submission when
EPA receives it, EPA will make it available to the public without
further notice to the person making comments.
Dated: March 15, 2013.
Director, Office of Transportation and Air Quality, Office of Air and
[FR Doc. 2013-06657 Filed 3-21-13; 8:45 am]
BILLING CODE 6560-50-P