TUC.2.2.090 Standards; Classifications
The Commission may ascertain and fix just and reasonable standards, classifications, rules or practices to be observed and followed by any or all public Utilities with respect to the service to be furnished; ascertain and fix adequate and reasonable standards for the measurement of the quantity, quality pressure, initial voltage, or other condition pertaining to the supply of the service; prescribe reasonable rules for the examination and testing of the service and for the measurement thereof; establish or approve reasonable rules, specifications, and standards to secure the accuracy of all meters, instruments and equipment used for the measurement of any service of any Utility. Any standards, classifications, rules, or practices now or hereafter observed or followed by any Utility may be followed by it with the Commission, and the same shall continue in force until amended by the Utility or until changed by the Commission as herein provided.