Sec. 111.183.  BASIS FOR RATE.  The basis of the rates shall be an amount that will provide a fair return on the aggregate value of the property of a common carrier used and useful in the services performed after providing reasonable allowance for depreciation and other factors and for reasonable operating expenses under honest, efficient, and economical management.
Acts 1977, 65th Leg., p. 2588, ch. 871, art. I, Sec. 1, eff. Sept. 1, 1977.