TITLE 83: PUBLIC UTILITIES
CHAPTER I: ILLINOIS COMMERCE COMMISSION
SUBCHAPTER d: GAS UTILITIES
PART 510 THE PRESERVATION OF RECORDS OF GAS UTILITIES (GENERAL ORDER 187)
SECTION 510.90 SCHEDULE OF RECORDS AND PERIODS OF RETENTION
Section 510.90 Schedule of Records and Periods of Retention
Appendix A annexed hereto shows the periods of time that designated records shall be preserved, and the records for which microfilms may be substituted therefor, in accordance with the foregoing instructions. It is not intended that more than one copy of any record be retained. See Item 74 of Appendix A for authority to destroy duplicates.