Citation

84 FR 37167

Canonical document for this Federal Register citation.

Approval and Promulgation of Air Quality Implementation Plans; Pennsylvania; Reasonably Available Control Technology (RACT) Determinations for Case-by-Case Sources Under the 1997 and 2008 8-Hour Ozone National Ambient Air Quality Standards; Part 1 Wednesday, July 31, 2019 84 FR 37167