1. (1) The rules in this section shall apply to petitions to revise rates filed under T.C.A. § 65-5- 103(a).
2. (2) The petitioner is required to file a notice of its intention to file a petition for revision of rates with the Docket Manager not less than 30 calendar days before filing its petition. At that time, a copy of the notice must also be emailed to the Commission’s General Counsel, the Director of the Utilities Division, the Consumer Advocate Division of the Tennessee Attorney General’s Office, and all parties of record from the utility’s most recent rate case. This notice will initiate a proceeding that requires the applicable filing fee under T.C.A. § 65-2-103 and Commission Rule 1220-01-01-.04, but does not begin the calculation of time under T.C.A. § 65-4-103(a) and (b).

3. (3) A petition for revision of rates shall include the following information to be considered complete:

   1. (a) A summary of the proposed changes that includes an estimated residential and commercial monthly and annual increase if the requested change is granted;
   2. (b) Pre-filed testimony supporting the proposed rate change; and,
   3. (c) A tariff implementing the proposed change.

4. (4) Customer notice of the petition shall be required:

   1. (a) Within the next billing cycle or 45 days of the filing date of the rate petition, whichever is sooner, the Company applying for a revision of rates shall send directly to its customers, in the same manner they receive billing statements, either electronically or by first-class mail, a notice of its filing that includes the summary set forth in (3)(a) above.
   2. (b) Once the date and location of the hearing on the petition have been determined, the Company must, within five days, provide an accurate update to the notice previously posted on its website and send the update directly to its customers in the same manner they receive their billing statements, either electronically or by first-class mail. This update shall include the date, location, and time scheduled for the hearing, an accurate summary of the proposed rate or rate changes currently presented to the Commission in the Company’s testimony, and a summary of the position, including rates or rate changes, proposed by any intervening parties.
   3. (c) The petitioner, by a duly authorized officer, or by its attorney, shall file a statement in writing on or before the date of hearing that the information required above has been distributed to its customers in the same manner they receive billing statements.
5. (5) Discovery in rate proceedings shall be governed by Rule 1220-01-02-.11.

Authority: T.C.A. §§ 65-2-102 and 65-4-104. Administrative History: New rule filed August 11, 2025; effective November 9, 2025.