Mich. Admin. Code R. 460.2546
Current through Vol. 24-21, December 1, 2024
Rule 46. The following rate schedule records shall be retained for the periods listed:
(a) General files of published rate sheets and schedules of utility service, including schedules suspended or superseded. | 6 years. |
(b) Regional or local office copies of rate sheets and schedules of utility service. | 1 year after expiration or cancellation. |
Mich. Admin. Code R. 460.2546