N.Y. Comp. Codes R. & Regs. tit. 6, § 231-2.12 – Table 2—Ozone nonattainment area and transport region classification for volatile organic compounds (VOC) and nitrogen oxides (NOx).

Ozone Nonattainment Area and Transport Region Classification for VOC and NO_x

Area/contaminant classification	Major facility size threshold (tons per year)¹	Significant source project threshold (tons per year)²	Significant net emission increase threshold (tons per year)³	Offset ratio
Marginal, or moderate, or ozone transport region
VOC	50	40	40	1.15:1 or more
NO_x	100	40	40	1.15:1 or more
Severe
VOC	25	2.5	more than 25	1.3:1 or more
NO_x	25	2.5	more than 25	1.3:1 or more

____ ¹ facility emission potential ² project emission potential ³ net emission increase