(1) Accounts or these accounts means the accounts prescribed in this system of accounts.

(2) Amortization means the gradual extinguishment of an amount in an account by prorating such amount over a fixed period, over the life of the asset or liability to which it applies, or over the period during which it is anticipated the benefit will be realized.

(3) Commission means the Public Service Commission of the State of New York.

(4) Control (including the terms controlling, controlled by, and under common control with) means the possession, directly or indirectly of the power to direct or cause the direction of the management and policies of a company, whether such power is exercised through one or more intermediary companies, or alone, or in conjunction with, or pursuant to an agreement with, one or more other companies, and whether such power is established through a majority or minority ownership or voting of securities, common directors, officers, or stockholders, voting trusts, holding trusts, affiliated companies, contract, or any other direct or indirect means.

(5) Cost means the amount of money actually paid (or the current market value of any consideration other than money given) for property or services.

(6) Cost of removal means the cost of demolishing, dismantling, removing, tearing down, or otherwise disposing of radio-telephone utility plant and recovering the salvage.

(7) Delayed items means items relating to transactions which occurred before the current calendar year. It includes adjustments of errors in income, operating revenue, and operating expense accounts of prior years.

(8) Depreciation, as applied to depreciable radio-telephone utility plant, means the loss of service value not restored by current maintenance caused by factors such as wear and tear, decay, action of the elements, inadequacy, obsolescence, changes in the art, changes in demand and requirements of public authorities. In connection with this definition, note section 684.1 of this Title.

(9) Extraordinary items means items relating to transactions occurring during the current calendar year of such a nature that they are not a part of the regular operating performance of the utility. Accordingly, there will be events and transactions of significant effect which would not be expected to recur frequently and which would distort income if reported other than as extraordinary.

(10) Interconnecting telephone company means any telephone corporation (as that term is defined in the Public Service Law) operating a conventional landline telephone system to which the radio-telephone utility has access through means of automatic or manual connection.

(11) Net salvage value means the salvage value of the property retired, after deducting the cost of removal.

(12) Original cost, as applied to radio-telephone utility plant, means the actual installed cost (or the current money value of other consideration other than money) of property in dollars at the time when it was first dedicated to the public use, whether by the accounting company or by predecessors.

(13) Plant retired means plant which has been removed, sold, abandoned, destroyed or otherwise withdrawn from radio-telephone utility service.

(14) Property unit means complete or identifiable items of radio-telephone utility equipment such as a console, a transmitter, a receiver, an antenna, or other complete and distinct units of property, the original cost of which is included in the plant accounts as separate or distinguishable amounts. When these units are retired with or without replacement, they are accounted for by crediting the original cost of the equipment to the plant account in which they are include, with a contra charge to the appropriate accumulated depreciation account.

(15) Radio-telephone utility plant means either intangible or physical property used in radio-telephone utility service, the original cost of which qualifies for inclusion in balance sheet asset account 100, Radio-telephone Plant in Service, or account 101, Radio-telephone Plant Under Construction.

(16) Salvage value means the amount received for property retired, less any expenses incurred in connection with the sale or in preparing the property for sale; or if retained, the amount at which the material recoverable is chargeable to account 114, Equipment and Supplies on Hand—Radio-telephone.

(17) Service life means the period between the date when radio-telephone utility plant is installed and the date of its retirement.

(18) Service value means the difference between the original cost and the net salvage value of radio-telephone utility plant.