Sec. 231-13.1. Table 1—Major facility thresholds and offset ratios for ozone nonattainment areas and the ozone transport region

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Area/Contaminant Classification	Major Facility Threshold (tons per year)	Offset Ratio
Marginal, Moderate, or Ozone Transport Region
VOC	50	At least 1.15:1
NO_x	100	At least 1.15:1
Severe
VOC	25	At least 1.3:1
NO_x	25	At least 1.3:1

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tons per year (tpy)

                    
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