OAR 340-224-0540: Net Air Quality Benefit Emission Offsets: Sources in a Designated Area Impacting Other Designated Areas

(1) When directed by the Major and State NSR rules, the owner or operator of a source locating outside, but impacting any designated area other than an attainment or unclassified area must meet one of the following requirements: (a) Obtain offsets sufficient to reduce impacts to less than the Class II SIL at all receptors within the designated area as demonstrated using an air quality analysis under OAR 340 division 225; or (b) Meet the following Net Air Quality Benefit requirements for the designated area that is impacted by the source, as applicable: (A) For sources subject to Major NSR for the pollutant for which the area is designated: (i) A source impacting a sustainment area must meet the requirements of OAR 340-224-0045(2); (ii) A source impacting a nonattainment area must meet the requirements of OAR 340-224-0050(2)(b); (iii) A source impacting a reattainment area must meet the requirements of OAR 340-224-0050(2)(b), treating the reattainment pollutant as a nonattainment pollutant for that rule; or (iv) A source impacting a maintenance area must meet the requirements of OAR 340-224-0060(2). (B) For sources subject to State NSR for the pollutant for which the area is designated: (i) A source impacting a sustainment area must meet the requirements of OAR 340-224-0245(1)(b); (ii) A source impacting a nonattainment area must meet the requirements of OAR 340-224-0250(2)(b); (iii) A source impacting a reattainment area must meet the requirements of OAR 340-224-0260(2)(b) treating the reattainment pollutant as a maintenance pollutant for that rule; or (iv) A source impacting a maintenance area must meet the requirements of OAR 340-224-0260(2)(b). (2) When directed by the Major and State NSR rules, sources impacting any attainment and unclassified areas, but not directly subject to OAR 340-224-0070 or 340-224-0270, must comply with 340-225-0050(1) and (2) for each regulated pollutant, other than GHGs, for which emissions will exceed the netting basis by the SER or more due to the proposed source or modification. NOTE: This rule is included in the State of Oregon Clean Air Act Implementation Plan that EQC adopted under OAR 340-020-0040.