In Resolution ALJ 176-3156, dated July 21, 2005, the Commission preliminarily determined that the category for this proceeding is ratesetting and that formal evidentiary hearings would not be necessary. These preliminary determinations were affirmed in the assigned Commissioner's Ruling and Scoping Memo dated September 26, 2005. There was no appeal of the assigned Commissioner's ruling, and there is nothing in the record of this proceeding that warrants our disturbing these prior determinations.