Reasonable further progress

(p) Reasonable further progress (RFP) means for the purposes of the 8-hour NAAQS, the progress reductions required under section 172(c)(2) and section 182(b)(1) and (c)(2)(B) and (c)(2)(C) of the CAA.

Source

40 CFR § 51.900

Scoping language

for purposes of this subpart