Gas Pipeline Uniform Accounting Regulations

53 (1) A separate depreciation rate shall be used in computing depreciation charges for each group of plant accounts, each plant account or each group of assets within a plant account.

(2) In determining the rate of depreciation, consideration shall be given to all relevant factors including variations in use, increasing obsolescence or inadequacy.

(3) Each depreciation rate used shall be approved by the Commission; but, where no rate has previously been approved for any class of plant, an interim rate as estimated by the company shall be used.