Conference on Air Quality Modeling, 4808-4810 [2012-2026]
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Federal Register / Vol. 77, No. 20 / Tuesday, January 31, 2012 / Notices
• Under this revised fee policy the fee
for return of TRIGA fuel will be the
same as that of aluminum based fuel, as
noted above.
TABLE 1—SUMMARY OF FEE POLICY
Aluminum based
fuel
Effective dates
LEU
Current Rates ..................................................................................................
Date of Publication in Federal Register .........................................................
January 1, 2014 ...............................................................................................
January 1, 2016 ...............................................................................................
Training, Research, Isotopes,
General Atomics (TRIGA)
HEU
$3,750
5,625
7,500
7,500
$4,500
4,500
6,750
9,000
LEU
$4,500
5,625
7,500
7,500
HEU
$4,500
4,500
6,750
9,000
The Department of Energy is also implementing a new minimum fee of $200,000 per shipment of any type and amount of eligible fuel to reflect
a minimum cost of providing acceptance services.
All rates are ‘‘per kg total mass’’ (not heavy metal mass).
The first phase of the change in the current fee policy takes effect immediately upon publication of this Notice in the Federal Register.
DOE is not establishing the fee structure
for target material as it would be
established on a case-by-case basis and
would be agreed to and specified on the
shipping-receipt contract for a particular
campaign. DOE reserves the right to
revise the fee policy at any time to
respond to changed circumstances. DOE
also reserves the right to adjust the fee
set in an acceptance contract if there are
unique and compelling circumstances
that make it in DOE’s best interest to do
so. Please note that all other conditions
and policies for accepting FRR SNF as
previously established will continue to
apply.
Issued in Washington, DC, this 25th day of
January, 2012.
Andrew Bieniawski,
Assistant Deputy Administrator, National
Nuclear Security Administration, Department
of Energy.
[FR Doc. 2012–2052 Filed 1–30–12; 8:45 am]
BILLING CODE 6450–01–P
ENVIRONMENTAL PROTECTION
AGENCY
[EPA–HQ–OAR–2012–0056; FRL–9625–1]
Conference on Air Quality Modeling
U.S. Environmental Protection
Agency (EPA).
ACTION: Notice of conference.
AGENCY:
The EPA will be hosting the
Tenth Conference on Air Quality
Modeling on March 13–15, 2012.
Section 320 of the Clean Air Act (CAA)
requires a conference to be held every
3 years. The purpose of the conference
is to provide an overview of the latest
features of the agency’s preferred air
quality models and to provide a forum
for public review and comment on how
the agency determines and applies air
quality models in the future.
DATES: Comments: Comments on how
the agency determines and applies air
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SUMMARY:
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quality models must be received on or
before April 16, 2012.
Conference: The conference will be
held on March 13 through 15, 2012,
from 8:30 a.m. to 5:00 p.m. Requests to
speak at the conference should be
submitted to the individual listed below
by March 5, 2012.
ADDRESSES: Comments: Submit your
comments, identified by Docket ID No.
EPA–HQ–OAR–2012–0056 by one of the
following methods:
• https://www.regulations.gov: Follow
the on-line instructions for submitting
comments. This is the EPA’s preferred
method for receiving comments.
• Email: Comments may be sent by
electronic mail (email) to a-and-rdocket@epa.gov, Attention Docket ID
No. EPA–HQ–OAR–2012–0056.
• Fax: Fax your comments to (202)
566–9744, Attention Docket ID No.
EPA–HQ–OAR–2012–0056.
• Mail: Send your comments to: Air
and Radiation Docket and Information
Center, Environmental Protection
Agency, Mailcode: 2822T, 1200
Pennsylvania Ave. NW., Washington,
DC 20460, Attention Docket ID No.
EPA–HQ–OAR–2012–0056.
• Hand Delivery or Courier: Deliver
your comments to EPA Docket Center,
1301 Constitution Ave. NW., Room
3334, Washington, DC. Such deliveries
are only accepted during the Docket’s
normal hours of operation, and special
arrangements should be made for
deliveries of boxed information.
Instructions: Direct your comments to
Docket ID No. EPA–HQ–OAR–2012–
0056. The EPA’s policy is that all
comments received will be included in
the public docket without change and
may be made available online at
https://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
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restricted by statute. Do not submit
information that you consider to be CBI
or otherwise protected through https://
www.regulations.gov or email. The
https://www.regulations.gov Web site is
an ‘‘anonymous access’’ system, which
means the 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 the EPA without
going through https://
www.regulations.gov, your email
address will be automatically 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, the 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 the EPA
cannot read your comment due to
technical difficulties and cannot contact
you for clarification, the 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 the EPA’s public docket, visit the
EPA Docket Center
homepage at https://www.epa.gov/
epahome/dockets.htm.
Docket: All documents in the docket
are listed in the https://
www.regulations.gov index. Although
listed in the index, some information is
not publicly available, e.g., CBI or other
information whose disclosure is
restricted by statute. Certain other
material, such as copyrighted material,
will be publicly available only in hard
copy form. Publicly available docket
materials are available either
electronically in https://
www.regulations.gov or in hard copy at
the Air Docket in the EPA Docket
Center, EPA West, Room 3334, 1301
Constitution Ave. NW., Washington,
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Federal Register / Vol. 77, No. 20 / Tuesday, January 31, 2012 / Notices
DC. This docket facility is open from
8:30 a.m. to 4:30 p.m., Monday through
Friday, excluding legal holidays. The
Docket telephone number is (202) 566–
1742; fax (202) 566–9744.
Background Information: Additional
information and a more detailed agenda
are electronically available at https://
www.epa.gov/ttn/scram/
10thmodconf.htm.
Conference: The conference will be
held in the EPA Auditorium, Room
C111, 109 T.W. Alexander Drive,
Research Triangle Park, NC 27711.
FOR FURTHER INFORMATION CONTACT:
George Bridgers, U.S. Environmental
Protection Agency, Office of Air Quality
Planning and Standards, Air Quality
Assessment Division, Mail Code C439–
01, Research Triangle Park, NC 27711;
telephone: (919) 541–5563; fax: (919)
541–0044; email address:
bridgers.george@epa.gov.
SUPPLEMENTARY INFORMATION:
wreier-aviles on DSK5TPTVN1PROD with NOTICES
I. General Information
A. What should I consider as I prepare
my comments for the EPA?
1. Submitting CBI. Do not submit this
information to the EPA through
www.regulations.gov or email. Clearly
mark the part or all of the information
that you claim to be CBI. For CBI
information in a disk or CD ROM that
you mail to the EPA, mark the outside
of the disk or CD ROM as CBI and then
identify electronically within the disk or
CD ROM the specific information that is
claimed as CBI. In addition to one
complete version of the comment that
includes information claimed as CBI, a
copy of the comment that does not
contain the information claimed as CBI
must be submitted for inclusion in the
public docket. Information so marked
will not be disclosed except in
accordance with procedures set forth in
40 CFR part 2.
2. Tips for Preparing Your Comments.
When submitting comments, remember
to:
• Identify the rulemaking by docket
number and other identifying
information (subject heading, Federal
Register date and page number).
• Follow directions. The agency may
ask you to respond to specific questions
or organize comments by referencing a
Code of Federal Regulations (CFR) part
or section number.
• Explain why you agree or disagree;
suggest alternatives and substitute
language for your requested changes.
• Describe any assumptions and
provide any technical information and/
or data that you used.
• If you estimate potential costs or
burdens, explain how you arrived at
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your estimate in sufficient detail to
allow for it to be reproduced.
• Provide specific examples to
illustrate your concerns, and suggest
alternatives.
• Explain your views as clearly as
possible, avoiding the use of profanity
or personal threats.
• Make sure to submit your
comments by the comment period
deadline identified.
II. Background
The Guideline on Air Quality Models
(hereafter, called the Guideline, which
is found in Appendix W to 40 CFR part
51), is used by the EPA, states and
industry to prepare and review new
source permits, source permit
modifications, and State
Implementation Plan submittals and
revisions. The Guideline serves as a
means by which national consistency is
maintained in air quality analyses. We
originally published the Guideline in
April 1978, and it was incorporated by
reference in the regulations for the
Prevention of Significant Deterioration
of Air Quality in June 1978. We revised
the Guideline in 1986, and updated it
with supplement A in 1987, supplement
B in July 1993, and supplement C in
August 1995. We published the
Guideline as Appendix W to 40 CFR
part 51 when we issued supplement B.
We republished the Guideline in August
1996 (61 FR 41838) to adopt the CFR
system for labeling paragraphs.
To support the process of developing
and revising the Guideline during the
period 1977–1988, we held the First,
Second, and Third Conferences on Air
Quality Modeling as required by CAA
Section 320 to help standardize
modeling procedures. These modeling
conferences provided us with comments
on the Guideline and associated
revisions, thereby helping us introduce
improved modeling techniques into the
regulatory process.
In October 1988, we held the Fourth
Conference on Air Quality Modeling to
advise the public on new modeling
techniques and to solicit comments to
guide our consideration of any
rulemaking needed to further revise the
Guideline. We held the Fifth Conference
in March 1991, which served as a public
hearing for the proposed revisions to the
Guideline. In August 1995, we held the
Sixth Conference as a forum to update
our available modeling tools with stateof-the-science techniques and for the
public to offer new ideas. The Seventh
Conference was held in June 2000 and
served as a public hearing for the
proposed changes to the recommended
air quality models in Appendix W
including the CALPUFF modeling
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system, AERMOD modeling system, and
ISC–PRIME model. We held the Eighth
Conference on Air Quality Modeling in
September 2005, which provided details
on changes to these recommended air
quality models, including the Notice of
Data Availability published in
September 2003 related to the
incorporation of the PRIME downwash
algorithm in the AERMOD dispersion
model in response to comments
received from the Seventh Conference,
and details on available methods for
model performance evaluation.
Additionally, at the Eighth Conference,
there was a panel of experts discussion
on the use of state-of-the-science
prognostic meteorological data for
informing the dispersion models.
The most recent conference was the
Ninth Conference on Air Quality
Modeling held in October 2008. The
conference began with an overview
presentation and review of Appendix W
and plans to reinstitute the Model
Clearinghouse. Several presentations
were made on non-guideline
applications of dispersion models as
well as a continuation of discussions
from the Eighth Conference on the use
of prognostic meteorological data with
respect to informing the Appendix W
models. Updates were provided on the
regulatory status, recent coding changes,
and future development of the
AERMOD modeling system, the EPA’s
preferred model for near-field regulatory
applications, and the CALPUFF
modeling system, the EPA’s preferred
model for long-range transport of
criteria pollutants and their impacts on
Federal Class I areas. The Ninth
Conference concluded with a collection
of presentations reviewing the available
model evaluation methods and
reviewing new and emerging models
and techniques for future consideration
under Appendix W. The proceedings,
including supporting material and
public comments received, are found in
Docket No. EPA–HQ–OAR–2008–0604.
III. Public Participation
The Tenth Conference on Air Quality
Modeling will be open to the public; no
admission fee is charged and there is no
formal registration. The conference will
begin the first morning with
introductory remarks by the presiding
EPA official. The following topics will
be presented:
A. Appendix W overview;
B. Model Clearinghouse update;
C. Currently preferred air quality
models (AERMOD and CALPUFF) status
and updates;
D. Review of prognostic
meteorological data processing tool for
dispersion models, MMIF;
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Federal Register / Vol. 77, No. 20 / Tuesday, January 31, 2012 / Notices
E. Modeling for compliance
demonstration of the PM2.5 National
Ambient Air Quality Standards
(NAAQS) including discussion of the
draft PM2.5 (primary and secondary)
modeling guidance;
F. Modeling for compliance
demonstration of the 1-hour NO2 and
SO2 NAAQS including presentations
from the AERMOD Implementation
Workgroup NO2 and SO2 modeling
study;
G. Review of new and emerging
models/techniques for future
consideration under Appendix W to
address long-range transport and
chemistry; and
H. Other presentations by the public.
Those wishing to speak at the
conference, whether to volunteer a
presentation on a special topic or to
offer general comment on any of the
modeling techniques scheduled for
presentation, should contact the EPA at
the address given in the FOR FURTHER
INFORMATION CONTACT section (note the
cutoff date). Such persons should
identify the organization (if any) on
whose behalf they are speaking and the
length of the presentation. If a
presentation of general comments is
projected to be longer than 10 minutes,
the presenter should also state why a
longer period is needed. Persons failing
to submit a written notice but desiring
to speak at the conference should notify
the presiding officer immediately before
the conference, and they will be
scheduled on a time-available basis.
The conference will be conducted
informally and chaired by an EPA
official. There will be no sworn
testimony or cross examination. A
verbatim transcript of the conference
proceedings will be produced and
placed in the docket. Speakers should
bring extra copies of their presentation
for inclusion in the docket and for the
convenience of the recorder. Speakers
will also be permitted to enter written
comments into the record. Additional
written statements or comments should
be sent to the OAR Regulatory Docket
(see ADDRESSES section). A transcript of
the proceedings and a copy of all
written comments will be maintained in
Docket ID No. EPA–HQ–OAR–2012–
0056, which will remain open until
April 16, 2012, for the purpose of
receiving additional comments.
Dated: January 25, 2012.
Mary E. Henigin,
Acting Director, Office of Air Quality Planning
and Standards.
[FR Doc. 2012–2026 Filed 1–30–12; 8:45 am]
BILLING CODE 6560–50–P
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ENVIRONMENTAL PROTECTION
AGENCY
[EPA–HQ–OPP–2011–0005; FRL–9330–5]
Pesticide Products; Receipt of
Applications To Register New Uses
Environmental Protection
Agency (EPA).
ACTION: Notice.
AGENCY:
This notice announces receipt
of applications to register new uses for
pesticide products containing currently
registered active ingredients, pursuant
to the provisions of section 3(c) of the
Federal Insecticide, Fungicide, and
Rodenticide Act (FIFRA), as amended.
EPA is publishing this Notice of such
applications, pursuant to section 3(c)(4)
of FIFRA.
DATES: Comments must be received on
or before March 1, 2012.
ADDRESSES: Submit your comments,
identified by the docket identification
(ID) number for the pesticide of interest,
specified within Unit II, by one of the
following methods:
• Federal eRulemaking Portal: https://
www.regulations.gov. Follow the on-line
instructions for submitting comments.
• Mail: Office of Pesticide Programs
(OPP) Regulatory Public Docket (7502P),
Environmental Protection Agency, 1200
Pennsylvania Avenue NW., Washington,
DC 20460–0001.
• Delivery: OPP Regulatory Public
Docket (7502P), Environmental
Protection Agency, Rm. S–4400, One
Potomac Yard (South Bldg.), 2777 S.
Crystal Dr., Arlington, VA. Deliveries
are only accepted during the Docket
Facility’s normal hours of operation
(8:30 a.m. to 4 p.m., Monday through
Friday, excluding legal holidays).
Special arrangements should be made
for deliveries of boxed information. The
Docket Facility telephone number is
(703) 305–5805.
Instructions: Direct your comments to
the docket ID number specified for the
pesticide of interest as shown in the
registration application summaries.
EPA’s policy is that all comments
received will be included in the docket
without change and may be made
available on-line at https://
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 regulations.gov or
email. The regulations.gov Web site is
an ‘‘anonymous access’’ system, which
SUMMARY:
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Fmt 4703
Sfmt 4703
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
regulations.gov, your email address will
be automatically captured and included
as part of the comment that is placed in
the 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.
Docket: All documents in the docket
are listed in the docket index available
at https://www.regulations.gov. Although
listed in the index, some information is
not publicly available, e.g., CBI or other
information whose disclosure is
restricted by statute. Certain other
material, such as copyrighted material,
is not placed on the Internet and will be
publicly available only in hard copy
form. Publicly available docket
materials are available either in the
electronic docket at https://
www.regulations.gov, or, if only
available in hard copy, at the OPP
Regulatory Public Docket in Rm. S–
4400, One Potomac Yard (South Bldg.),
2777 S. Crystal Dr., Arlington, VA. The
hours of operation of this Docket
Facility are from 8:30 a.m. to 4 p.m.,
Monday through Friday, excluding legal
holidays. The Docket Facility telephone
number is (703) 305–5805.
FOR FURTHER INFORMATION CONTACT: A
contact person is listed at the end of
each registration application summary
and may be contacted by telephone or
email. The mailing address for each
contact person listed is: Registration
Division (7505P), Office of Pesticide
Programs, Environmental Protection
Agency, 1200 Pennsylvania Avenue
NW., Washington, DC 20460–0001 or
Biopesticides and Pollution Prevention
Division (7511P), Office of Pesticide
Programs, Environmental Protection
Agency, 1200 Pennsylvania Avenue
NW., Washington, DC 20460–0001.
SUPPLEMENTARY INFORMATION:
I. General Information
A. Does this action apply to me?
You may be potentially affected by
this action if you are an agricultural
producer, food manufacturer, or
pesticide manufacturer. Potentially
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]]>Agencies
[Federal Register Volume 77, Number 20 (Tuesday, January 31, 2012)]
[Notices]
[Pages 4808-4810]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 2012-2026]
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ENVIRONMENTAL PROTECTION AGENCY
[EPA-HQ-OAR-2012-0056; FRL-9625-1]
Conference on Air Quality Modeling
AGENCY: U.S. Environmental Protection Agency (EPA).
ACTION: Notice of conference.
-----------------------------------------------------------------------
SUMMARY: The EPA will be hosting the Tenth Conference on Air Quality
Modeling on March 13-15, 2012. Section 320 of the Clean Air Act (CAA)
requires a conference to be held every 3 years. The purpose of the
conference is to provide an overview of the latest features of the
agency's preferred air quality models and to provide a forum for public
review and comment on how the agency determines and applies air quality
models in the future.
DATES: Comments: Comments on how the agency determines and applies air
quality models must be received on or before April 16, 2012.
Conference: The conference will be held on March 13 through 15,
2012, from 8:30 a.m. to 5:00 p.m. Requests to speak at the conference
should be submitted to the individual listed below by March 5, 2012.
ADDRESSES: Comments: Submit your comments, identified by Docket ID No.
EPA-HQ-OAR-2012-0056 by one of the following methods:
https://www.regulations.gov: Follow the on-line
instructions for submitting comments. This is the EPA's preferred
method for receiving comments.
Email: Comments may be sent by electronic mail (email) to
a-and-r-docket@epa.gov, Attention Docket ID No. EPA-HQ-OAR-2012-0056.
Fax: Fax your comments to (202) 566-9744, Attention Docket
ID No. EPA-HQ-OAR-2012-0056.
Mail: Send your comments to: Air and Radiation Docket and
Information Center, Environmental Protection Agency, Mailcode: 2822T,
1200 Pennsylvania Ave. NW., Washington, DC 20460, Attention Docket ID
No. EPA-HQ-OAR-2012-0056.
Hand Delivery or Courier: Deliver your comments to EPA
Docket Center, 1301 Constitution Ave. NW., Room 3334, Washington, DC.
Such deliveries are only accepted during the Docket's normal hours of
operation, and special arrangements should be made for deliveries of
boxed information.
Instructions: Direct your comments to Docket ID No. EPA-HQ-OAR-
2012-0056. The EPA's policy is that all comments received will be
included in the public docket without change and may be made available
online at https://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 https://www.regulations.gov or email. The https://www.regulations.gov Web site
is an ``anonymous access'' system, which means the 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 the EPA
without going through https://www.regulations.gov, your email address
will be automatically 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, the 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 the EPA cannot read your comment
due to technical difficulties and cannot contact you for clarification,
the 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 the
EPA's public docket, visit the EPA Docket Center homepage at https://www.epa.gov/epahome/dockets.htm.
Docket: All documents in the docket are listed in the https://www.regulations.gov index. Although listed in the index, some
information is not publicly available, e.g., CBI or other information
whose disclosure is restricted by statute. Certain other material, such
as copyrighted material, will be publicly available only in hard copy
form. Publicly available docket materials are available either
electronically in https://www.regulations.gov or in hard copy at the Air
Docket in the EPA Docket Center, EPA West, Room 3334, 1301 Constitution
Ave. NW., Washington,
[[Page 4809]]
DC. This docket facility is open from 8:30 a.m. to 4:30 p.m., Monday
through Friday, excluding legal holidays. The Docket telephone number
is (202) 566-1742; fax (202) 566-9744.
Background Information: Additional information and a more detailed
agenda are electronically available at https://www.epa.gov/ttn/scram/10thmodconf.htm.
Conference: The conference will be held in the EPA Auditorium, Room
C111, 109 T.W. Alexander Drive, Research Triangle Park, NC 27711.
FOR FURTHER INFORMATION CONTACT: George Bridgers, U.S. Environmental
Protection Agency, Office of Air Quality Planning and Standards, Air
Quality Assessment Division, Mail Code C439-01, Research Triangle Park,
NC 27711; telephone: (919) 541-5563; fax: (919) 541-0044; email
address: bridgers.george@epa.gov.
SUPPLEMENTARY INFORMATION:
I. General Information
A. What should I consider as I prepare my comments for the EPA?
1. Submitting CBI. Do not submit this information to the EPA
through www.regulations.gov or email. Clearly mark the part or all of
the information that you claim to be CBI. For CBI information in a disk
or CD ROM that you mail to the EPA, mark the outside of the disk or CD
ROM as CBI and then identify electronically within the disk or CD ROM
the specific information that is claimed as CBI. In addition to one
complete version of the comment that includes information claimed as
CBI, a copy of the comment that does not contain the information
claimed as CBI must be submitted for inclusion in the public docket.
Information so marked will not be disclosed except in accordance with
procedures set forth in 40 CFR part 2.
2. Tips for Preparing Your Comments. When submitting comments,
remember to:
Identify the rulemaking by docket number and other
identifying information (subject heading, Federal Register date and
page number).
Follow directions. The agency may ask you to respond to
specific questions or organize comments by referencing a Code of
Federal Regulations (CFR) part or section number.
Explain why you agree or disagree; suggest alternatives
and substitute language for your requested changes.
Describe any assumptions and provide any technical
information and/or data that you used.
If you estimate potential costs or burdens, explain how
you arrived at your estimate in sufficient detail to allow for it to be
reproduced.
Provide specific examples to illustrate your concerns, and
suggest alternatives.
Explain your views as clearly as possible, avoiding the
use of profanity or personal threats.
Make sure to submit your comments by the comment period
deadline identified.
II. Background
The Guideline on Air Quality Models (hereafter, called the
Guideline, which is found in Appendix W to 40 CFR part 51), is used by
the EPA, states and industry to prepare and review new source permits,
source permit modifications, and State Implementation Plan submittals
and revisions. The Guideline serves as a means by which national
consistency is maintained in air quality analyses. We originally
published the Guideline in April 1978, and it was incorporated by
reference in the regulations for the Prevention of Significant
Deterioration of Air Quality in June 1978. We revised the Guideline in
1986, and updated it with supplement A in 1987, supplement B in July
1993, and supplement C in August 1995. We published the Guideline as
Appendix W to 40 CFR part 51 when we issued supplement B. We
republished the Guideline in August 1996 (61 FR 41838) to adopt the CFR
system for labeling paragraphs.
To support the process of developing and revising the Guideline
during the period 1977-1988, we held the First, Second, and Third
Conferences on Air Quality Modeling as required by CAA Section 320 to
help standardize modeling procedures. These modeling conferences
provided us with comments on the Guideline and associated revisions,
thereby helping us introduce improved modeling techniques into the
regulatory process.
In October 1988, we held the Fourth Conference on Air Quality
Modeling to advise the public on new modeling techniques and to solicit
comments to guide our consideration of any rulemaking needed to further
revise the Guideline. We held the Fifth Conference in March 1991, which
served as a public hearing for the proposed revisions to the Guideline.
In August 1995, we held the Sixth Conference as a forum to update our
available modeling tools with state-of-the-science techniques and for
the public to offer new ideas. The Seventh Conference was held in June
2000 and served as a public hearing for the proposed changes to the
recommended air quality models in Appendix W including the CALPUFF
modeling system, AERMOD modeling system, and ISC-PRIME model. We held
the Eighth Conference on Air Quality Modeling in September 2005, which
provided details on changes to these recommended air quality models,
including the Notice of Data Availability published in September 2003
related to the incorporation of the PRIME downwash algorithm in the
AERMOD dispersion model in response to comments received from the
Seventh Conference, and details on available methods for model
performance evaluation. Additionally, at the Eighth Conference, there
was a panel of experts discussion on the use of state-of-the-science
prognostic meteorological data for informing the dispersion models.
The most recent conference was the Ninth Conference on Air Quality
Modeling held in October 2008. The conference began with an overview
presentation and review of Appendix W and plans to reinstitute the
Model Clearinghouse. Several presentations were made on non-guideline
applications of dispersion models as well as a continuation of
discussions from the Eighth Conference on the use of prognostic
meteorological data with respect to informing the Appendix W models.
Updates were provided on the regulatory status, recent coding changes,
and future development of the AERMOD modeling system, the EPA's
preferred model for near-field regulatory applications, and the CALPUFF
modeling system, the EPA's preferred model for long-range transport of
criteria pollutants and their impacts on Federal Class I areas. The
Ninth Conference concluded with a collection of presentations reviewing
the available model evaluation methods and reviewing new and emerging
models and techniques for future consideration under Appendix W. The
proceedings, including supporting material and public comments
received, are found in Docket No. EPA-HQ-OAR-2008-0604.
III. Public Participation
The Tenth Conference on Air Quality Modeling will be open to the
public; no admission fee is charged and there is no formal
registration. The conference will begin the first morning with
introductory remarks by the presiding EPA official. The following
topics will be presented:
A. Appendix W overview;
B. Model Clearinghouse update;
C. Currently preferred air quality models (AERMOD and CALPUFF)
status and updates;
D. Review of prognostic meteorological data processing tool for
dispersion models, MMIF;
[[Page 4810]]
E. Modeling for compliance demonstration of the PM2.5
National Ambient Air Quality Standards (NAAQS) including discussion of
the draft PM2.5 (primary and secondary) modeling guidance;
F. Modeling for compliance demonstration of the 1-hour
NO2 and SO2 NAAQS including presentations from
the AERMOD Implementation Workgroup NO2 and SO2
modeling study;
G. Review of new and emerging models/techniques for future
consideration under Appendix W to address long-range transport and
chemistry; and
H. Other presentations by the public.
Those wishing to speak at the conference, whether to volunteer a
presentation on a special topic or to offer general comment on any of
the modeling techniques scheduled for presentation, should contact the
EPA at the address given in the FOR FURTHER INFORMATION CONTACT section
(note the cutoff date). Such persons should identify the organization
(if any) on whose behalf they are speaking and the length of the
presentation. If a presentation of general comments is projected to be
longer than 10 minutes, the presenter should also state why a longer
period is needed. Persons failing to submit a written notice but
desiring to speak at the conference should notify the presiding officer
immediately before the conference, and they will be scheduled on a
time-available basis.
The conference will be conducted informally and chaired by an EPA
official. There will be no sworn testimony or cross examination. A
verbatim transcript of the conference proceedings will be produced and
placed in the docket. Speakers should bring extra copies of their
presentation for inclusion in the docket and for the convenience of the
recorder. Speakers will also be permitted to enter written comments
into the record. Additional written statements or comments should be
sent to the OAR Regulatory Docket (see ADDRESSES section). A transcript
of the proceedings and a copy of all written comments will be
maintained in Docket ID No. EPA-HQ-OAR-2012-0056, which will remain
open until April 16, 2012, for the purpose of receiving additional
comments.
Dated: January 25, 2012.
Mary E. Henigin,
Acting Director, Office of Air Quality Planning and Standards.
[FR Doc. 2012-2026 Filed 1-30-12; 8:45 am]
BILLING CODE 6560-50-P
