Mich. Admin. Code R. 460.2551
Current through Vol. 24-21, December 1, 2024
Rule 51. The following revenue summaries shall be retained for the periods listed:
| (a) Summaries of monthly operating revenues according to classes of service for the entire utility. | 6 years. |
| (b) Summaries of monthly operating revenues according to classes of service by towns, districts, or regions, including summaries of forfeited discounts and penalties. | 6 years. |
Mich. Admin. Code R. 460.2551