Michigan Administrative Code
Department - Licensing and Regulatory Affairs
Public Service Commission
Preservation of Records of Electric, Gas, And Water Utilities
Part 2 - SCHEDULE OF RECORDS AND PERIODS OF RETENTION
Section R. 460.2532 - Plant ledgers; retention periods
Universal Citation: MI Admin Code R. 460.2532
Current through Vol. 24-04, March 15, 2024
Rule 32. The following plant ledgers and records shall be retained for the periods listed:
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(a) Ledgers of utility plant accounts, including land and other detailed ledgers that show the cost of utility plant by classes. |
25 years. |
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(b) Continuing plant inventory ledger, book, or card records that show the description, location, quantity cost, and similar information of physical units, or items, of utility plant owned. |
25 years after the plant is retired if mortality data are retained. For depreciation purposes, life or mortality study data shall be retained for the life of the corporation. |
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