Or. Admin. Code § 340-224-0038
For sources subject to Major NSR or Type A State NSR, fugitive emissions are included in the calculation of emission rates of all air contaminants. Fugitive emissions are subject to the same control requirements and analyses required for emissions from identifiable stacks or vents. Secondary emissions are not included in calculations of potential emissions that are made to determine if a source or modification is subject to Major or Type A State NSR. Once a source is subject to Major or Type A State NSR, secondary emissions also become subject to the air quality impact analysis requirements in this division and OAR 340 division 225.
NOTE: This rule is included in the State of Oregon Clean Air Act Implementation Plan that EQC adopted under OAR 340-200-0040.
Or. Admin. Code § 340-224-0038
Stat. Auth.: ORS 468.020, 468A.025, 468A.035, 468A.040, 468A.050, 468A.055 & 468A.070
Stats. Implemented: ORS 468