§72.81. Permit modifications.

Relaxation of an excess emission offset requirement after approval of the offset plan by the Administrator;

Incorporation of a final nitrogen oxides alternative emission limitation following a demonstration period;

Determinations concerning failed repowering projects under § 72.44(g)(1)(i) and (2) of this part.

Consistent with paragraph (a) of this section, incorporation of a compliance option that the designated representative did not submit for approval and comment during the permit issuance process; except that incorporation of a reduced utilization plan that was not submitted during the permit issuance process, that does not designate a compensating unit, and that meets the requirements of § 72.43 of this part, may use the administrative permit amendment procedures under § 72.83 of this part;

Changes in a substitution plan or reduced utilization plan that result in the addition of a new substitution unit or a new compensating unit under the plan;

Addition of a nitrogen oxides averaging plan to a permit;

Changes in a Phase I extension plan, repowering plan, nitrogen oxides averaging plan, or nitrogen oxides compliance deadline extension; and

Changes in a thermal energy plan that result in any addition or subtraction of a replacement unit or any change affecting the number of allowances transferred for the replacement of thermal energy.