Rule 48. The following meter reading sheets and records shall be retained for the periods listed:
(a) Superseded meter reading sheets. | 2 years or as necessary to comply with service rules regarding refunds on fast meters. |
(b) Meter reread sheets (special readings to check high or low consumption). | 1 year. |
(c) Customer reading cards. | 1 year. |
(d) Connection and disconnection orders. | 1 year. |
(e) Superseded indexes to meter books. | Destroy at option. |
(f) Mark sensed meter reading cards. Note: If a gas utility collects rates authorized by this commission based on increased supplier rates collected under bond under authority of the federal energy regulatory commission, such utility shall maintain sufficient gas consumption records to enable the calculation of refunds to individual customers as may be ordered by the Michigan public service commission. This requirement shall continue in effect until final action by the federal energy regulatory commission or the final decree of the court, if appealed thereto, and until such time as the Michigan public service commission enters its order authorizing appropriate refunds if such be the case. | Destroy at option after transferring data to other records. |
Mich. Admin. Code R. 460.2548