Mich. Admin. Code R. 460.2577
Current through Vol. 24-21, December 1, 2024
Rule 77. The following maintenance records shall be retained for the periods listed:
| (a) Authorizations for expenditures for maintenance work to be covered by work orders, including memoranda that show the estimates of costs to be incurred. | 6 years. |
| (b) Work order sheets to which are posted, in detail, the entries for labor, material, and other charges in connection with maintenance and other work pertaining to utility operations. | 6 years. |
| (c) Summaries of expenditures on maintenance and job orders and clearances to operating and other accounts, exclusive of plant accounts. | 6 years. |
Mich. Admin. Code R. 460.2577