(a) To register its exemption, the religious organization shall complete and submit these documents to the Commission:(1) a registration application;(2) a copy of the determination letter from the Internal Revenue Service documenting the organization's tax exempt status under the Internal Revenue Code (26 U.S.C. §501(c)(3); and(3) a copy of the organization's articles of incorporation documenting that the primary purpose of the organization is the propagation of religious beliefs or a letter from the State of Texas Comptroller's Office documenting the organization's religious tax exemption status.(b) The Commission shall issue a letter documenting the organization's registered exemption if the application packet satisfies the requirements in this section.(c) An exempt organization registered under this section shall notify the Commission in writing within ten working days of any change affecting the program's exemption.(d) Incomplete applications shall be returned to the applicant.