General rate proceeding filings by solid waste collection companies or commercial ferries must include the information described in this rule. The company must file all required documents in electronic form consistent with the requirements in WAC 480-07-140. A solid waste collection company may file a document with locked, hidden, or password protected cells only if such restricted access is necessary to protect the information within the cells that is not subject to public disclosure. The solid waste collection company must identify each locked, hidden, or password protected cell and must designate such cells, as well as any other information the party contends is confidential under RCW 81.77.210 or otherwise protected from disclosure, in compliance with the requirements in WAC 480-07-160 and any applicable protective order. The solid waste collection company must make such information accessible to all persons who have signed the protective order or are otherwise entitled to access the information including, but not necessarily limited to, commission staff. A commercial ferry company may not file a document with locked, hidden, or password protected cells.

(1) Proposed tariff. The company's initial filing must include the company's proposed tariff sheets. Sections that are narrative, e.g., that contain rules or notes, must be in legislative format, i.e., with strike-through to indicate any material to be deleted or replaced and underlining to indicate any material to be inserted. Changes to tariff sections that are tabular, e.g., charts containing rates and charges, must be marked with appropriate tariff symbols consistent with the requirements in WAC 480-70-286.

(2) Local government ordinances and customer notices. The company's initial filing must include a copy of every local government ordinance related to the request in compliance with WAC 480-70-326, and a copy of the customer notices issued in compliance with the provisions of WAC 480-70-271.

(3) Transmittal letter. The company's initial filing must include a transmittal letter in compliance with WAC 480-70-326.

(4) Work papers. The company's initial filing must include all work papers that support the company's rate change request. Work papers must include the following:

(a) A detailed pro forma income statement separated by customer class, with restating and pro forma adjustments, reflected in separate columns, including all supporting calculations and documentation for all adjustments.

(i) Restating adjustments adjust the booked operating results for any defects or infirmities in actual recorded results of operations that can distort test period earnings. Restating adjustments are also used to adjust from an as-recorded basis to a basis that the commission accepts for determining rates. Examples of restating adjustments are adjustments to remove prior period amounts, to eliminate below-the-line items that were recorded as operating expenses in error, to adjust from book estimates to actual amounts, and to eliminate or to normalize extraordinary items recorded during the test period.

(ii)Pro forma adjustments give effect for the test period to all known and measurable changes that are not offset by other factors. The company's initial filing must identify dollar values and underlying reasons for each proposed pro forma adjustment.

(iii) Restating and pro forma adjustments must be calculated as the variance from the booked operating results.

(b) A calculation of the total revenues the company is realizing at its present rates and the total revenues the company would realize at the requested rates.

(c) An income statement listing all revenue and expense accounts by month or a supporting general ledger for the test period.

(d) If nonregulated revenue represents more than ten percent of total company test period revenue, a detailed separation of all revenue and expenses between regulated and nonregulated operations.

(e) A detailed list of all nonregulated operations. The company must provide copies of all contracts upon request.

(f) A detailed study that reconciles service pickups or passenger counts, as applicable, to the test year revenue by tariff item or service. The computed revenue must reconcile within five percent of test period revenue.

(g) A consolidated balance sheet for the company with supporting documentation including, but not limited to, detailed cost of debt and a list of all real property and vehicle leases to which the company is a party.

(h) A detailed calculation of net investment in plant and equipment and the net book value of used and useful assets at the end of the test period.

(i) A detailed depreciation schedule listing all used and useful assets the regulated entity that operates under the tariff for which the company files the rate request held during the test period, including the date of purchase, the cost at purchase, the depreciable life, the salvage value, depreciation expense, and accumulated depreciation expense at the end of the test period.

(j) Information about every transaction with an affiliated interest or subsidiary that directly or indirectly affects the proposed rates, including a full description of the relationship, the terms and amount of the transaction, the length of time the relationship has been ongoing, and an income statement and balance sheet for every affiliated entity.

(5) Annual report. The company's initial filing must include the company's most recent consolidated annual report to shareholders, if any.

(6) Interim rates. The commission may grant interim rates subject to refund when considering proposed changes to tariffs requested by solid waste collection companies under RCW 81.28.050. Interim rates subject to refund granted pursuant to this section shall be limited to those companies that demonstrate, after a brief adjudicative proceeding or limited hearing, an emergency, undue hardship, or inequity. If a solid waste collection company requests interim rate relief, the commission will consider the request on an expedited schedule.