N.Y. Gen. Bus. Law § 56

§ 56. Limitation on refunds under commercial installment sales\nagreements. An agreement for the sale of equipment, machinery or the\naccessories or parts thereto to a commercial or business enterprise for\nits use or for the purpose of resale which provides for the financing of\nsuch purchase by an installment sale provision shall provide that any\nrefund due as a result of an early termination of the agreement shall be\ndetermined according to a generally accepted actuarial method.\n