No agreement or release except as otherwise provided in this chapter by an employee to waive his right to compensation under this chapter shall be valid.
Any policy executed by the chair pursuant to this section shall be in the form of an assumption of workers' compensation liability insurance policy securing such further and future contingent liability as may arise from any claim covered by such policy, including prior injuries to workers and be incurred by reason of any change in the condition of such workers warranting the board making subsequent awards for payment of additional compensation. Such policy shall be in a form approved by the superintendent of financial services and issued by the state insurance fund or any insurance company licensed to issue this class of insurance in this state, or deemed acceptable as an issuer upon application by the chair to the superintendent as specified in subdivision three of section fifty of this chapter. In the event that such policy is issued by an insurance company other than the state insurance fund, then said policy shall be deemed of the kind specified in paragraph fifteen of subsection (a) of section one thousand one hundred thirteen of the insurance law and covered by the workers' compensation security fund as created and governed by article six-a of this chapter. Such policy shall only be issued for a single complete premium paid in advance and in an amount deemed acceptable by the chair and the superintendent of financial services. When issued such policy shall be noncancellable without recourse for any cause during the continuance of the liability secured and so covered.
N.Y. Work. Comp. Law § 32