Frequent Questions

Do environmental receptors include areas that are not Federal Class I areas?

Do environmental receptors include areas that are not Federal Class I areas under the CAA?

Yes.  The list of environmental receptors in Part 68 includes areas in addition to those that qualify as Federal Class I areas under CAA section 162.  Under Part 68, national parks, monuments, wilderness areas, and forests are environmental receptors regardless of size.  State parks, monuments, and forests are also environmental receptors.

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