N.Y. Insurance Law § 4703
(a) No municipal corporation shall establish, maintain or otherwise participate in a municipal cooperative health benefit plan in this state which provides benefits, in whole or part, on a shared-funding basis, unless the municipal cooperative health benefit plan:
(b) The governing board shall file an application for a certificate of authority on such form as the superintendent may prescribe, and shall provide to the satisfaction of the superintendent the following:
(8) a proposed plan of operation and funding for the municipal cooperative health benefit plan, setting forth: