[Federal Register Volume 75, Number 125 (Wednesday, June 30, 2010)]
[Pages 37794-37795]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2010-15894]




Science Advisory Board Staff Office; Notification of a Public 
Teleconference of the Air Quality Modeling Subcommittee of the Advisory 
Council on Clean Air Compliance Analysis (Council)

AGENCY: Environmental Protection Agency (EPA).

ACTION: Notice.


SUMMARY: The EPA Science Advisory Board (SAB) Staff Office announces a 
public teleconference of the Air Quality Modeling Subcommittee (AQMS) 
of the Advisory Council on Clean Air Compliance Analysis (Council) to 
review additional information on particulate matter inventories for 
EPA's air quality modeling work for the Second Section 812 Prospective 
Benefit-Cost Study of the Clean Air Act.

DATES: The AQMS will conduct a public teleconference on August 11, 
2010. The teleconference will begin at 12 noon and end by 2 p.m. 
(Eastern Time).

ADDRESSES: The teleconference will be conducted by telephone only.

FOR FURTHER INFORMATION CONTACT: Any member of the public wishing to 
obtain general information concerning the

[[Page 37795]]

public teleconference may contact Ms. Stephanie Sanzone, Designated 
Federal Officer (DFO), via telephone at (202) 343-9697 or e-mail at 
[email protected]. General information about the Council can be 
found on the EPA Web site at http://www.epa.gov/advisorycouncilcaa.

SUPPLEMENTARY INFORMATION: Pursuant to the Federal Advisory Committee 
Act (FACA), 5 U.S.C., App. 2, notice is hereby given that the Air 
Quality Modeling Subcommittee (AQMS) of the Advisory Council on Clean 
Air Compliance Analysis (Council) will hold a public teleconference to 
discuss additional information on estimates of fine particulate matter 
(PM2.5) emissions and air quality changes for the Second 
Section 812 Benefit-Cost Analysis of the Clean Air Act. The Council was 
established in 1991 pursuant to the Clean Air Act (CAA) Amendments of 
1990 (see 42 U.S.C. 7612) to provide advice, information and 
recommendations on technical and economic aspects of analyses and 
reports EPA prepares on the impacts of the CAA on the public health, 
economy, and environment of the United States. The Council is a Federal 
Advisory Committee chartered under FACA. The AQMS will provide advice 
through the Council and will comply with the provisions of FACA and all 
appropriate SAB Staff Office procedural policies.
    Background: Pursuant to Section 812 of the 1990 Clean Air Act 
Amendments (CAAA), EPA conducts periodic studies to assess benefits and 
costs of programs implemented pursuant to the Clean Air Act. The 
Council has provided advice on an EPA retrospective study published in 
1997 and an EPA prospective study completed in 1999. EPA initiated a 
second prospective study to evaluate the benefits and costs of EPA 
Clean Air programs for years 1990-2020. The Council has previously 
provided advice on the analytical blueprint for this study. EPA's 
Office of Air and Radiation (OAR) is now nearing completion of the 
analytical work for the second prospective study. The AQMS met on 
February 19, 2010 [Federal Register Notice dated January 26, 2010 (75 
FR 4070-4071)] to review technical documents pertaining to modeling of 
air quality for seven emissions scenarios: a 1990 baseline simulation; 
and simulations for 2000, 2010 and 2020 with and without the CAAA. The 
AQMS held a follow-up teleconference meeting on March 15, 2010 to 
discuss information provided by EPA on proposed adjustments to 
estimated emissions of primary PM2.5 from particular sources 
and the effects on the estimated air quality changes between scenarios 
based on those revised emissions estimates. Materials for the February 
19 and March 15 meetings are available on the Council Web site at 
    In a resulting advisory report (EPA-COUNCIL-10-002), the AQMS 
recommended that ``the scaling procedure [for PM2.5] should 
be clearly documented in the draft modeling report * * * or in a 
separate document that also describes the MATS [Modeled Attainment Test 
Software] adjustment procedure and results, including the results of 
MATS with and without scaling of emissions.'' In response to this 
recommendation, the EPA has provided a memorandum (dated June 14, 2010) 
that documents the adjustment procedure and PM2.5 results 
for a number of metropolitan areas. The purpose of the August 11, 2010 
teleconference meeting is to discuss the MATS memorandum and provide 
final advice to the Council and the Agency on the reasonableness of the 
primary PM2.5 emissions revisions and the resulting re-
estimated air quality concentration changes between scenarios that will 
be used for benefit estimation in the Second Section 812 Prospective 
    Technical Contacts: The Office of Air and Radiation technical 
contact for the Second Section 812 Benefit-Cost Analysis of the Clean 
Air Act is Mr. Jim DeMocker at (202) 564-1673 or [email protected].
    Availability of Meeting Materials: The meeting materials, including 
the review materials and meeting agenda for the August 2010 
teleconference, will be posted to the Council Web site at http://www.epa.gov/advisorycouncilcaa prior to the meeting. EPA draft 
documents provided to the AQMS also are available at http://www.epa.gov/oar/sect812/prospective2.html.
    Procedures for Providing Public Input: Interested members of the 
public may submit relevant written or oral information for the AQMS to 
consider on the topics of this advisory activity. Oral Statements: In 
general, individuals or groups requesting an oral presentation at a 
teleconference meeting will be limited to three minutes per speaker, 
with no more than a total of one hour for all speakers. Interested 
parties should contact Ms. Sanzone at the contact information provided 
above by August 4, 2010, to be placed on the public speaker list for 
the August 11, 2010 meeting. Written Statements: Written statements 
should be received in the SAB Staff Office by August 4, 2010, so that 
the information can be made available to the AQMS for their 
consideration prior to the meeting. Written statements should be 
supplied to Ms. Sanzone in the following formats: one hard copy with 
original signature and one electronic copy via e-mail (acceptable file 
format: Adobe Acrobat PDF, MS Word, WordPerfect, MS PowerPoint, or Rich 
Text files). Submitters are asked to provide electronic versions of 
each document submitted with and without signatures, because the SAB 
Staff Office does not publish documents with signatures on its Web 
    Accessibility: For information on access or services for 
individuals with disabilities, please contact Ms. Sanzone at (202) 343-
9697, or via e-mail at [email protected], preferably at least 
ten (10) days prior to the meeting, to give EPA as much time as 
possible to process your request.

    Dated: June 23, 2010.
Vanessa T. Vu,
Director, EPA Science Advisory Board Staff Office.
[FR Doc. 2010-15894 Filed 6-29-10; 8:45 am]