[Federal Register Volume 76, Number 66 (Wednesday, April 6, 2011)]
[Rules and Regulations]
[Page 18870]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2011-8334]



[[Page 18870]]

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ENVIRONMENTAL PROTECTION AGENCY

40 CFR Part 51


Requirements for Preparation, Adoption, and Submittal of 
Implementation Plans

CFR Correction

    In Title 40 of the Code of Federal Regulations, Parts 50 to 51, 
revised as of July 1, 2010, on page 265, in Sec.  51.166, paragraph 
(b)(49)(vi) is added to read as follows:


Sec.  51.166  Prevention of significant deterioration of air quality.

* * * * *
    (b) * * *
    (49) * * *
    (vi) Particulate matter (PM) emissions, PM2.5 emissions, 
and PM10 emissions shall include gaseous emissions from a 
source or activity which condense to form particulate matter at ambient 
temperatures. On or after January 1, 2011 (or any earlier date 
established in the upcoming rulemaking codifying test methods), such 
condensable particulate matter shall be accounted for in applicability 
determinations and in establishing emissions limitations for PM, 
PM2.5 and PM10 in PSD permits. Compliance with 
emissions limitations for PM, PM2.5 and PM10 
issued prior to this date shall not be based on condensable particular 
matter unless required by the terms and conditions of the permit or the 
applicable implementation plan. Applicability determinations made prior 
to this date without accounting for condensable particular matter shall 
not be considered in violation of this section unless the applicable 
implementation plan required condensable particular matter to be 
included.
* * * * *
[FR Doc. 2011-8334 Filed 4-5-11; 8:45 am]
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