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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.

June 30, 1981 PSD Definition of Source 3.18

The two GM facilities which are programmed together, have dedicated railway service between them, but are located a mile apart, should be considered one source for the purpose of PSD review. Since the switch will not cause any creditable increases, it is not subject to PSD. The definition of source under PSD has 3 criteria:
  1. Common Industrial Grouping
  2. Common ownership or control
  3. Contiguous or adjacent sites

The facilities in question, without argument, meet the first two criteria. And, based on the unique set up of these facilities EPA considers them adjacent and therefore can be considered one source for PSD.

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