(a) The commission, not later than the 180th day after the date a public utility reports to the commission under Section 14.101, shall complete an investigation under that section and enter a final order.
(b) If a final order is not entered as required by Subsection (a), the commission is considered to have determined that the action taken by the public utility is consistent with the public interest.

(c) Section 14.101 does not apply to:
(1) a company that receives a certificate of operating authority or a service provider certificate of operating authority under Chapter 54; or
(2) a company electing under Chapter 58.