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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.

February 24, 1989 Cut-off Date for Determining LAER in Major New Source Permitting 26.7

A LAER determination for an NSR permit must reflect the most stringent LAER construction permit that has been issued anywhere in the country in the time period up to and including the public comment period on the permit under consideration. See also Documents 26.10 and

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