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. 460.2568 - Electricity production records; retention periods
Rule 68. The following electricity production records shall be retained for the periods listed:
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(a) Boiler room, condenser room, turbine room, and pump room logs, including supporting data. |
3 years. |
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(b) Boiler room and turbine room reports of equipment in service and performance. |
3 years. |
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(c) Boiler-tube failure report. |
3 years. |
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(d) Generation and output logs with supporting data. |
3 years. |
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(e) Station and system generation reports. |
25 years, except that those relating to licensed projects, or additions or betterments to those projects, for which the commission has not determined the actual legitimate original cost, shall be retained 25 years and until this cost has been determined. |
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(f) Generating high-tension and low-tension load records. |
3 years. |
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(g) Oil and waste reports. |
3 years. |
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(h) Load curves, temperature logs, and coal and water logs. |
3 years. |
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(i) Gage reading reports. |
2 years, except that river-flow data collected in connection with hydro-operation shall be retained for the life of the corporation. |
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(j) Recording instrument charts. |
1 year, except that where the basic chart information is transferred to another record, the charts shall be retained for only 6 months if the record that contains the basic data is retained for 1 year. |
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(k) Load dispatcher's and station permits. |
1 year, except that where the basic chart information is transferred to another record, the charts shall be retained for only 6 months if the record that contains the basic data is retained for 1 year. |
