Section 31.01.01.121 - FORM AND CONTENTS OF APPLICATION TO CHANGE RATES01.Utility Applications to Change Rates. Applications by any public utility to change any rate, fare, toll, rental or charge or any classification, contract, practice, rule or regulation resulting in any such increase, decrease or change must include the following data:a. An exhibit fully showing each proposed change in rates, tolls, rentals, charges, rules or regulation by striking over proposed deletions to existing tariffs and underlining proposed additions or amendments to existing tariffs, except applications to increase or decrease all or almost all rates and charges by a uniform percentage or by a uniform amount may be made by filing a tariff listing the proposed change and all unchanged rates and charges or rates and charges not changed by a uniform percentage or a uniform amount, or by using another designation previously approved by the Commission that clearly calls attention to all proposed changes in numbers or wording.b. A complete justification of the proposed increase in the form of testimony and exhibits or a narrative exposition.c. A statement showing how and when the application has been or will be brought to the attention of affected customers and a copy of the press release and customer notice required by Rule 125.d. A statement that the applicant stands ready for immediate consideration of the application.e. Testimony and exhibits showing financial statements, cost of capital and appropriate cost of service studies.f. Workpapers or documentation showing how test year data were adjusted.g. If the applicant provides utility service in states besides Idaho or that is subject to federal regulation, a jurisdictional separation of all investments, revenues and expenses allocated or assigned in whole or in part to Idaho intrastate utility business regulated by this Commission showing allocations or assignments to Idaho.02.Proposals Based upon Computer Modeling. In addition, in any application in which a computer model is used to represent or simulate processes from which the revenue requirement is derived or upon which allocations of the revenue requirement to different customer classes are based, complete documentation of all those computer models must be supplied to the Staff, upon request, and be available in the utility's office or other depository. The Staff may request that the computer model itself be provided. A computer model includes the representation or simulation of a process, but does not mean or include the compilation of actual data. The application must state that (a) the models' documentation on file in the applicant's office or another depository fully describes the models or (b) necessary updates or additions to prior documentation that will fully describe the models is on file and will be supplied on request.03.Grounds for Returning or Dismissing Application. Failure to comply with Rule 121.01 and 121.02 is grounds to return or dismiss an application under Rule 65.Idaho Admin. Code r. 31.01.01.121