Section 124.211 - What types of changes may I make to my standardized permit?You may make both routine changes, routine changes with prior Agency approval, and significant changes. For the purposes of this section:
(a) "Routine changes" are any changes to the standardized permit that qualify as a class 1 permit modification (without prior Agency approval) under 40 CFR 270.42 , appendix I, and(b) "Routine changes with prior Agency approval" are for those changes to the standardized permit that would qualify as a class 1 modification with prior agency approval, or a class 2 permit modification under 40 CFR 270.42 , appendix I; and(c) "Significant changes" are any changes to the standardized permit that:(1) Qualify as a class 3 permit modification under 40 CFR 270.42 , appendix I;(2) Are not explicitly identified in 40 CFR 270.42 , appendix I; or(3) Amend any terms or conditions in the supplemental portion of your standardized permit.