N.Y. Comp. Codes R. & Regs. tit. 6, § 231-13.4
| Area/Contaminant Classification | Significant Project Threshold (tpy)2 | Significant Net Emission Increase Threshold (tpy) | Offset Ratio |
| Moderate | |||
| PM-101 | 15 | 15 | At least 1:1 |
| No classification | |||
| PM-2.51 | 10 | 10 | At least 1:1 |
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1both filterable and condensable fractions are to be included (see definitions of PM-10 and PM-2.5 in Part 200 of this Title).
2 project emission potential threshold.