Section 31.31.01.154 - CUSTOMER METER ACCURACY REQUIREMENTS01.Accuracy of Meters. A gas meter installed for the use of any customer shall not be more than two percent (2%) slow or fast.02.Removal of Defective Meters From Service. No meter that is mechanically defective shall be placed in service or allowed to remain in service after the defect has been discovered. When any gas meter is not connected in service, the inlet and outlet shall be capped to prevent the drying out of the diagrams.Idaho Admin. Code r. 31.31.01.154