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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 24, 1980 Definition of "Installation" in Nonattainment Regulations 23.23

The term installation refers to "an identifiable piece of process equipment." If an NSPS identifies an "affected facility", the reviewing agency should consider such an affected facility as an installation for the purpose of new source review applicability determinations. Where NSPS is silent or there is no NSPS to define an affected facility, the NSPS approach should still provide guidance to the reviewer.

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