(b) Minor permit modification procedures may be used only for those permit modifications that:

1. (1) Involve an emission increase of less than:

   1. (A) Seventy-five (75) tons per year of carbon monoxide (CO);
   2. (B) Forty (40) tons per year of nitrogen oxides (NO_x);
   3. (C) Forty (40) tons per year of sulfur dioxide (SO₂);
   4. (D) Twenty-five (25) tons per year of particulate matter (PM);
   5. (E) Ten (10) tons per year of direct PM_2.5;
   6. (F) Fifteen (15) tons per year of PM₁₀;
   7. (G) Forty (40) tons per year of volatile organic compounds (VOCs);
   8. (H) Six-tenths (0.6) tons per year of lead; and
   9. (I) Seventy-five thousand (75,000) tons per year of CO₂e;
2. (2) Involve the installation or modification of emissions units which do not require a Title I emissions netting procedure to determine eligibility;
3. (3) Do not violate any applicable requirement;
4. (4) Do not involve significant changes to existing monitoring, reporting, or recordkeeping requirements in the permit;
5. (5) Do not require or change a case-by-case determination of an emission limitation or other standard, or a source-specific determination for temporary sources of ambient impacts, or a visibility or increment analysis;

6. (6)

   1. (A) Do not seek to establish or change a permit term or condition for which there is no corresponding underlying applicable requirement and that the source has assumed to avoid an applicable requirement to which the source would otherwise be subject.
   2. (B) Such terms and conditions include:

(i) A federally enforceable emissions cap assumed to avoid classification as a modification under any provision of Title I; and

1. (ii) An alternative emissions limit approved pursuant to regulations promulgated under Section 112(i)(5) of the Act; and
2. (7) Are not modifications under any provision of Title I of the Act.