N.Y. Comp. Codes R. & Regs. tit. 3, § 409.6
(4) As used in this Part the term substantial stockholder means a person owning or controlling directly or indirectly 10 percent or more of the total outstanding stock of a corporation.
(b) Prior approval required.
(c) Without limiting the responsibilities of persons seeking to acquire control of a student loan servicer to make application to the superintendent pursuant to section 715 of the Banking Law and this section, every student loan servicer shall report to the superintendent within 5 days of the date the student loan servicer becomes aware of such information, the name and residence of each person (or each member of a group of persons acting in concert) who becomes an owner of 10 percent or more of the outstanding shares of any voting class of the student loan servicer and shall inform such person of the reporting requirements under this Part.
(2) Such an application shall be in the form of a letter, containing a sworn statement under penalty of perjury by the person making the application that the contents of the letter are true, that sets forth all the information necessary for the superintendent to make the determination. Such information must at a minimum include:
(d) Application for a determination of control.
(a) Definition of control.