OAR 340-210-0225
Notice of Construction and Approval of Plans: Types of Construction/Modification Changes
(1)
Type 1 changes include construction or modification of sources or air pollution control devices where such a change meets the criteria in subsections (a) through (f):(a)
Would not increase emissions from the source above the PSEL by more than the de minimis emission level defined in OAR 340-200-0020 (General Air Quality Definitions) for sources required to have a permit;(b)
Would not increase emissions from the source above the netting basis by more than or equal to the SER;(c)
Would not increase emissions from any new, modified, or replaced device, activity or process, or any combination of devices, activities or processes at the source by more than the de minimis levels defined in OAR 340-200-0020 (General Air Quality Definitions);(d)
Would not be used to establish a federally enforceable limit on the potential to emit; and(e)
Would not require a TACT determination under OAR 340-226-0130 (Highest and Best Practicable Treatment and Control: Typically Achievable Control Technology (TACT)) or a MACT determination under OAR 340-244-0200 (Compliance Extensions for Early Reductions: Emissions Limitation for New and Reconstructed Major Sources); and(f)
Is not required to obtain a permit under OAR 340 division 216.(2)
Type 2 changes include construction or modification of sources or air pollution control devices where such a change meets the criteria in subsections (a) through (f):(a)
Would not increase emissions from the source above the PSEL by more than the de minimis level defined in OAR 340-200-0020 (General Air Quality Definitions) for sources required to have a permit;(b)
Would not increase emissions from the source above the netting basis by more than or equal to the SER;(c)
Would not increase emissions from any new, modified, or replaced device, activity or process, or any combination of devices, activities or processes at the source by more than or equal to the SER;(d)
Would not be used to establish a federally enforceable limit on the potential to emit;(e)
Would not require a TACT determination under OAR 340-226-0130 (Highest and Best Practicable Treatment and Control: Typically Achievable Control Technology (TACT)) or a MACT determination under OAR 340-244-0200 (Compliance Extensions for Early Reductions: Emissions Limitation for New and Reconstructed Major Sources); and(f)
Is not required to obtain a permit under OAR 340 division 216.(3)
Type 3 changes include construction or modification of sources or air pollution control devices where such a change does not qualify as a Type 4 change under section (4) and:(a)
Would increase emissions from the source above the PSEL by more than the de minimis emission level defined in OAR 340-200-0020 (General Air Quality Definitions) before applying unassigned emissions or emissions reduction credits available to the source but less than the SER after applying unassigned emissions or emissions reduction credits available to the source for sources required to have a permit;(b)
Would increase emissions from any new, modified, or replaced device, activity or process, or any combination of devices, activities or processes at the source by more than the SER but are not subject to OAR 340-222-0041 (Source Specific Annual PSEL)(4);(c)
Would be used to establish a federally enforceable limit on the potential to emit; or(d)
Would require a TACT determination under OAR 340-226-0130 (Highest and Best Practicable Treatment and Control: Typically Achievable Control Technology (TACT)) or a MACT determination under 340-244-0200 (Compliance Extensions for Early Reductions: Emissions Limitation for New and Reconstructed Major Sources).(4)
Type 4 changes include construction or modification of sources or air pollution control devices where such a change or changes would increase emissions from the source above the PSEL, after applying unassigned emissions or emissions reduction credits available to the source, or netting basis of the source by more than the SER.
Source:
Rule 340-210-0225 — Notice of Construction and Approval of Plans: Types of Construction/Modification Changes, https://secure.sos.state.or.us/oard/view.action?ruleNumber=340-210-0225.