(b)

1. (1) Non-Part 70 permits: Modification fee = $/ton factor x tons/year net emissions increase of predominant air contaminant
2. (2) However, no modification fee shall be less than four hundred dollars ($400), or more than the $/ton factor x by 4,000.

(c) Part 70 permits.

1. (1)

   1. (A) For each nonminor permit modification or each renewal permit involving a nonminor permit modification: Fee = $/ton factor x tons/year net emission increase of chargeable emissions
   2. (B) However, no fee shall be less than one thousand dollars ($1,000) or more than the $/ton factor x by 4,000.
2. (2) A fee of five hundred dollars ($500) for each minor permit modification or each renewal permit involving only a minor permit modification.