N.Y. Environmental Conservation Law § 27-0923
3. a. Notwithstanding any provision of this section to the contrary, no special assessment shall be imposed under this section on the resource recovery of any hazardous waste; provided, however, that any materials remaining from resource recovery which are hazardous wastes and which are subsequently disposed of, treated, or incinerated, shall be subject to the special assessments imposed by this section. For purposes of this section, resource recovery shall not include the removal of water from a hazardous waste. b. In the case of a fraction of a ton, the special assessments imposed by this section shall be the same fraction of the amount of such special assessment imposed on a whole ton. c. For the purpose of this section, generation of hazardous waste shall not include retrieval or creation of hazardous waste which must be disposed of under an order of or agreement with the department pursuant to title thirteen or title fourteen of this article or under a contract with the department pursuant to title five of article fifty-six of this chapter or under an order of or agreement with the United States environmental protection agency or an order of a court of competent jurisdiction, related to a facility addressed pursuant to the Comprehensive Environmental Response, Compensation and Liability Act (42 U.S.C. 9601 et seq.) or under a written agreement with a municipality which has entered into a memorandum of agreement with the department related to the remediation of brownfield sites as of August fifth, two thousand ten. d. No portion of the special assessments collected pursuant to this section shall be used for any purpose if such use, under federal law, would preclude the collection of such special assessment. e. Notwithstanding any provision of this section to the contrary, the actual method utilized to dispose of or treat any hazardous waste shall govern the determination of the rate per ton applicable under the special assessments imposed by this section, even if such hazardous waste was designated for removal, removed, stored or received for disposal or treatment by a method different than the method actually utilized. Where any such special assessment with respect to any hazardous waste is reported and paid on the basis of a rate per ton which is greater than the rate per ton applicable to the actual method utilized to dispose of or treat such hazardous waste, the difference between the amount reported and paid and the amount due using the rate per ton applicable to the actual method utilized shall be considered an overpayment of such special assessment. The commissioner of taxation and finance shall credit or refund such overpayment in the manner provided and subject to the conditions contained in article twenty-seven of the tax law, as incorporated by subdivision six of this section. f. No special assessment shall be imposed under this section on hazardous waste generated by or at an elementary or secondary school provided the waste results from services which are provided: