N.Y. Comp. Codes R. & Regs. tit. 6, § 231-2.13 – Table 3—Nonattainment area classification for particulate matter less than 10 microns in size (PM-10) and carbon monoxide (CO).

Nonattainment Area Classification for PM-10 and CO

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
Moderate
PM-10	100	15	15	1:1 or more
Moderate
CO	50⁴	100	100	1:1 or more

___ ¹ facility emission potential ² project emission potential ³ net emission increase ⁴ The department may exempt a proposed major CO facility from the requirements of this Subpart if the facility emission potential for carbon monoxide is less than 100 tons per year, provided the source owner demonstrates to the satisfaction of the department that carbon monoxide emissions from the facility will not cause the significant air quality impact criteria in section 231-2.14 of this Subpart for carbon monoxide to be exceeded.