A utility filing for an increase in rates and charges shall be prepared to go forward at a hearing on reasonable notice on the data, testimony, and exhibits which have been submitted and sustain the burden of proof of establishing that its proposed charges are just and reasonable and not unduly discriminatory or preferential or otherwise unlawful. In addition to the material the utility chooses to submit as part of its case, except for

1. (1) Increases filed under § 20:10:13:26;
2. (2) Increases resulting from changes made in fuel clauses or gas adjustment clauses; and

3. (3) Increases of rates comprising an integral part of coordination and interchange arrangements in the nature of power pooling transactions.

   The exhibits shall include full cost of service data, as identified in §§ 20:10:13:51 to 20:10:13:102, inclusive. Although §§ 20:10:13:51 to 20:10:13:102, inclusive, provide for a historical test period, the utility, in addition, may submit cost of service information for a nonhistorical test period beginning no later than the proposed effective date of the new rates. Statements A through R and the accompanying testimony shall include an explanation of these exhibits.

Source: 2 SDR 90, effective July 7, 1976; 12 SDR 151, 12 SDR 155, effective July 1, 1986.

General Authority: SDCL 49-34A-4 .

Law Implemented: SDCL 49-34A-10 , 49-34A-12 , 49-34A-13 , 49-34A-41 .