(1) A utility may file substitute tariff sheets within a pending tariff filing if:

(a) There is no material change to the terms and conditions of service contained in the pending tariff sheet. This restriction does not apply to changes made to address commission concerns with the filing;

(b) The change does not increase the rates contained in the pending tariff sheet; or

(c) The change is to make typographical corrections to the pending tariff sheet.

(2) The filing must include a transmittal letter as set forth in WAC 480-80-104. The substitute filing must include the notation "Do Not Redocket."

(3) The commission retains discretion to reject any substitute tariff sheets where doing so is in the public interest.