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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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