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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 1, 1982 Stack Height Regulations and Accompanying Preamble Language 6.12

Response concluding that flares are not considered "stacks" under the stack height regulations and ramifications on ambient air quality modeling. CR: None

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