Section NR 489.10 - Mitigation of air quality impacts(1) Any measures that are intended to mitigate air quality impacts shall be identified, including the identification and quantification of all emission reductions claimed, and the process for implementation, including any necessary funding of such measures and tracking of such emission reductions, and enforcement of such measures shall be described, including an implementation schedule containing explicit timelines for implementation.(2) Prior to determining that a federal action is in conformity, the federal agency making the conformity determination shall obtain written commitments from the appropriate persons or agencies to implement any mitigation measures which are identified as conditions for making conformity determinations. Such written commitment shall describe such mitigation measures and the nature of the commitment, in a manner consistent with sub. (1). (3) Persons or agencies voluntarily committing to mitigation measures to facilitate positive conformity determinations shall comply with the obligations of such commitments.(4) In instances where the federal agency is licensing, permitting or otherwise approving the action of another governmental or private entity, approval by the federal agency shall be conditioned on the other entity meeting the mitigation measures set forth in the conformity determination, as provided in sub. (1). (5) When necessary because of changed circumstances, mitigation measures may be modified so long as the new mitigation measures continue to support the conformity determination in accordance with ss. NR 489.08 to 489.09 and this section. Any proposed change in the mitigation measures is subject to the reporting requirements of s. NR 489.05 and the public participation requirements of s. NR 489.06.(6) Written commitments to mitigation measures shall be obtained prior to a positive conformity determination and such commitments shall be fulfilled.(7) After this implementation plan revision is approved by EPA, any agreements, including mitigation measures, necessary for a conformity determination shall be both state and federally enforceable. Enforceability through the applicable implementation plan shall apply to all persons who agree to mitigate direct and indirect emissions associated with a federal action for a conformity determination.Wis. Admin. Code Department of Natural Resources NR 489.10
Cr. Register, September, 1995, No. 477, eff. 10-1-95; am. (5), Register, November, 1999, No. 527, eff. 12-1-99.