(a) The electric utility shall:
(1) publish, in conspicuous form and place, notice to the public of the proposed change once each week for four successive weeks before the effective date of the proposed change in a newspaper having general circulation in each county containing territory affected by the proposed change; and
(2) mail notice of the proposed change to any other affected person as required by the regulatory authority's rules.
(b) The regulatory authority may waive the publication of notice requirement prescribed by Subsection (a) in a proceeding that involves only a rate reduction for each affected ratepayer. The applicant shall give notice of the proposed rate change by mail to each affected utility customer.
(c) The regulatory authority by rule shall define other proceedings for which the publication of notice requirement prescribed by Subsection (a) may be waived on a showing of good cause. A waiver may not be granted in a proceeding involving a rate increase to any class or category of ratepayer.