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. 460.2534 - Retirement ledgers, work orders, and supplemental records; retention periods
Rule 34. The following retirement work in progress ledgers, work orders, and supplemental records shall be retained for the periods listed:
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(a) Work order sheets that have the entries for removal costs, materials recovered, and credits to utility plant accounts for cost of plant retired posted to them. |
5 years after the plant is retired if mortality data are retained. |
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(b) Authorization for retirement of utility plant, including memoranda that show the basis for the determination of the cost of plant to be retired and estimates of salvage and removal costs. |
5 years after clearance to the plant account if continuing plant inventory records are maintained; otherwise, 5 years after the plant is retired, if mortality data are retained. |
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(c) Registers of retirement work orders. |
5 years. |
