N.Y. Comp. Codes R. & Regs. tit. 6, § 235-8.1
(a) Any person who cannot comply with the requirements set forth in Subpart 235-3 of this Part, because of extraordinary reasons beyond the person's reasonable control may apply in writing to the director, Division of Air Resources, Department of Environmental Conservation for a variance. When approved by the director, Division of Air Resources, Department of Environmental Conservation, the variance will be submitted to the United States Environmental Protection Agency as a State Implementation Plan revision for approval. The variance application shall set forth:
(b) No variance shall be granted unless all of the following findings are made: