1. (a) Each utility shall file Form E-25 with the commission and the department when it proposes any change in depreciation rates.

2. (b) A utility shall include on Form E-25:

   1. (1) The name of the utility filing the report;
   2. (2) The date;
   3. (3) The account number and title;
   4. (4) The estimated whole life, reported as the number of years from initial installation to final retirement, both present and proposed;
   5. (5) The net salvage, both present and proposed, by percentage;
   6. (6) The depreciation rate, both present and proposed, by percentage;
   7. (7) The net annual change in dollars;
   8. (8) The theoretical reserve calculated as the difference between the calculated accumulated depreciation determined using the proposed depreciation rates and the accumulated depreciation;
   9. (9) The proposed amortization of the theoretical reserve;
   10. (10) The reasons for changes in depreciation rates and length of the proposed amortization of the theoretical reserve; and
   11. (11) The signature, full name, and title of the utility employee who supervised the preparation of the report, and date of signature.
3. (c) A utility shall not implement any change in depreciation rates until the proposed change has been approved by the commission.

Source. #13794, eff 10-25-23; ss by #14462, eff 1-2-26, EXPIRES 1-2-36