N.Y. Insurance Law § 2343
(d) The superintendent shall promulgate a regulation, which may be amended from time to time, establishing a physicians professional liability insurance merit rating plan applicable to medical malpractice insurance coverage whether written as an individual policy or through a voluntary attending physician ("channeling") program previously permitted by the superintendent which reflects an individual physician's or surgeon's experience with respect to incidents or occurrences of alleged medical malpractice. The regulation shall establish standards and limitations intended to insure that merit rating plans are reasonable and are not unfairly discriminatory, inequitable, violative of public policy or otherwise contrary to the best interests of the people of this state. Such regulation shall include: