Notwithstanding any other commission rules or order to the contrary, this Part governs the rights, duties and obligations of every telephone corporation subject to the jurisdiction of the commission by virtue of article 5 of Public Service Law and their residential and nonresidential customers concerning the provision of billing and collection services by telephone corporations and the selling of those services to third parties.
N.Y. Comp. Codes R. & Regs. Tit. 16 § 606.2