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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 15, 1989 Guidance on Early Delegation of Authority for the Nitrogen Dioxide (NO2) Increments Program 1.7

The memo discusses: (1) how States with delegated authority initiate the process of advancing the general effective date of 40 CFR 52.21; and (2) the appropriate EPA rulemaking procedures for carrying out a State's request.

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