N.Y. Comp. Codes R. & Regs. tit. 11, § 410.11
(a) Insureds shall be responsible for:
(4) ensuring that, to the extent possible, all supporting documentation, including but not limited to diagnostic test results and medical literature, is submitted to the assigned certified external appeal agent within the earlier of:
(d) Insureds, except for those whose health benefits are provided through title XIX of the Federal Social Security Act and title 1-A of article 25 of the Public Health Law, are responsible for enclosing a fee with the request for an external appeal to the superintendent in accordance with the fee prescribed by the insured's health care plan. The insured is responsible for requesting a waiver of the fee requirement from the health care plan if such fee will pose a financial hardship for the insured. Insureds shall not be responsible for paying a fee for any external appeal requested by a health care provider relative to a retrospective adverse determination.
(e)