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Note: EPA no longer updates this information, but it may be useful as a reference or resource.

Please see www.epa.gov/nsr/ for the latest information on EPA's New Source Review program.

October 3, 1980 PSD and NSPS Applicability to a Reactivated Source 3.15

EPA continues to maintain that sources which are shutdown for more than 2 years and are removed from the State's emission inventory are presumed to be permanent shutdowns, and thus subject to PSD upon reactivation; the source can rebut this presumption by providing evidence that the shutdown was not intended to be permanent. In addition, with the inclusion of the contemporaneous provisions in the 8/7/80 PSD amendment, it appears that shutdowns will have to be considered in order for sources to obtain credit for contemporaneous decreases.

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