1703 - Depreciation accounts; reports.

     § 1703.  Depreciation accounts; reports.        (a)  Accounts.--Every public utility shall carry on its books     or records of account, proper and reasonable sums representing     the annual depreciation on its property used or useful in the     public service, which sums shall be based upon the average     estimated life of each of the several units or classes of     depreciable property. The commission, by appropriate order,     after hearing, shall, except where found to be inappropriate,     establish for each class of public utilities, the units of     depreciable property, the loss upon the retirement of which     shall be charged to the depreciation reserve.        (b)  Statements.--Every public utility shall file with the     commission, at such times and in such form as the commission may     prescribe, statements setting forth the details supporting its     computation of annual depreciation, as recorded on the books or     records of accounts of the public utility. If the commission,     upon review of such statements, is of the opinion that the     amount of annual depreciation so recorded by any public utility     is not reasonable and proper, it may, after hearing, require     that provision be made for annual depreciation in such sums as     may be found by it to be reasonable and proper. In making its     findings, the commission shall give consideration to the     experience of the public utility, and the predecessors of the     public utility in accumulating depreciation reserves, the     retirements actually made, and such other factors as may be     deemed relevant.        (c)  Use of estimates.--The commission shall not be bound in     rate proceedings to accept, as just and reasonable for rate-     making purposes, estimates of annual depreciation established     under the provisions of this section, but in such rate     proceedings it shall give consideration to statements submitted     under this section, in addition to such other factors as may be     relevant.        Cross References.  Section 1703 is referred to in section     1706 of this title.