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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.

April 8, 1987 Clarification of New Source Review Policy on Averaging Times for Production Limitations 2.26

The policy described in the March 13, 1986, memo on maximum allowable averaging times for production and operational limitations shall not be applied to emission limitations, rather it applies only to production/operational limitations. This memorandum further distinguishes between EPA's policy on averaging times for production limitations versus emission limitations, and clarifies the proper implementation of the March 13, 1986, memorandum.

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