N.Y. Banking Law § 620-a

§ 620-a. Certain claims shall not be accepted. The superintendent\nshall not accept a claim based on an agreement with the banking\norganization unless the agreement is either reflected on the accounts,\nbooks or records of the banking organization or a creditor provides\ndocumentary evidence of such agreement. The superintendent may issue any\nregulations determined to be necessary to implement this section.\n