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[Federal Register Volume 77, Number 126 (Friday, June 29, 2012)]
[Proposed Rules]
[Pages 38760-38761]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 2012-16044]

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ENVIRONMENTAL PROTECTION AGENCY

40 CFR Parts 50, 51, 52, 53, and 58

[EPA-HQ-OAR-2007-0492; FRL-9693-7]
RIN 2060-AO47

National Ambient Air Quality Standards for Particulate Matter; 
Correction

AGENCY: Environmental Protection Agency (EPA).

ACTION: Proposed rule; correction.

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SUMMARY: In the Proposed Rules section of today's Federal Register, the 
EPA is proposing to revise the national ambient air quality standards 
(NAAQS) for particulate matter (PM). This action corrects a 
typographical error in one table contained in the preamble.

FOR FURTHER INFORMATION CONTACT: Questions concerning the ``National 
Ambient Air Quality Standards for Particulate Matter'' proposed rule 
should be addressed to Ms. Beth Hassett-Sipple, U.S. EPA, Office of Air 
Quality Planning and Standards, Health and Environmental Impacts 
Division, (C504-06), Research Triangle Park, NC 27711, telephone number 
(919) 541-4605, email hassett-sipple.beth@epa.gov. Questions related to 
the Regulatory Impact Analysis for the proposed revisions to the PM 
NAAQS should be addressed to Ms. Lillian Bradley, U.S. EPA, Office of 
Office of Air Quality Planning and Standards, Health and Environmental 
Impacts Division, (C439-02), Research Triangle Park, NC 27711, 
telephone number (919) 541-5694, email bradley.lillian@epa.gov.

SUPPLEMENTARY INFORMATION: In today's Federal Register, a proposed rule 
titled, ``National Ambient Air Quality Standards for Particulate 
Matter,'' with the same RIN as this correction (RIN 2060-AO47) was 
published. This correction corrects a typographical error in section 
X.A, Table 4 of the preamble. This correction will make a change to the 
summary of the potential costs and benefits of attaining several 
alternative PM2.5 standards as presented in the Regulatory 
Impact Analysis (RIA). In NAAQS rulemaking, the RIA is done for 
informational purposes only, and the proposed decisions announced in 
today's Federal Register are not in any way based on consideration of 
the information or analyses in the RIA. Specifically, the net benefits 
presented in Table 4 (3% discount rate) for alternative 
PM2.5 standard levels of 11/35 [mu]g/m\3\ (annual and 24-
hour standards) were incorrectly identified as $8,900 to $2300 million 
in the proposed rule. The correct estimates are $8,900 to $23,000 
million. Table 4 is corrected to read as follows:

                        Table 4--Total Costs, Monetized Benefits and Net Benefits in 2020 a (Millions of 2006$) b Full Attainment
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                                           Total costs                   Monetized benefits \b\                           Net benefits \b\
Alternate PM2.5 standards (annual/ ---------------------------------------------------------------------------------------------------------------------
      24-hour, in [mu]g/m\3\)       3% Discount  7% Discount
                                        rate         rate        3% Discount rate       7% Discount rate     3% Discount rate \c\     7% Discount rate
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13/35.............................         $2.9         $2.9  $88 to $220..........  $79 to $200..........  $85 to $220..........  $76 to $200
12/35.............................           69           69  2,300 to $5,900......  2,100 to $5,400......  2,300 to $5,900......  2,000 to $5,300
11/35.............................          270          270  9,200 to $23,000.....  8,300 to $21,000.....  8,900 to $23,000.....  8,000 to $21,000
11/30.............................          390          390  14,000 to $36,000....  13,000 to $33,000....  14,000 to $36,000....  13,000 to $33,000
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\a\ Values are rounded to two significant figures. Using a 2010$ year increases estimated costs and benefits by approximately 8%.

[[Page 38761]]

 
\b\ The reduction in premature deaths each year accounts for over 90% of total monetized benefits. Mortality risk valuation assumes discounting over the
  SAB-recommended 20-year segmented lag structure. Not all possible benefits or disbenefits are quantified and monetized in this analysis. B is the sum
  of all unquantified benefits. Data limitations prevented us from quantifying these endpoints, and as such, these benefits are inherently more
  uncertain than those benefits that we were able to quantify.
\c\ Due to data limitations, we were unable to discount compliance costs for all sectors at 3%. As a result, the net benefit calculations at 3% were
  computed by subtracting the monetized benefits at 3% minus the costs at 7%.

    Dated: June 25, 2012.
Gina McCarthy,
Assistant Administrator, Office of Air and Radiation.
[FR Doc. 2012-16044 Filed 6-28-12; 8:45 am]
BILLING CODE 6560-50-P
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