(a) Original registration poll records shall be maintained in their ledgers, emplaced as they have been when used in polling places, and available for reference until after the board has successfully conducted an election in a county or portion thereof using registration poll lists with voter signature facsimiles, and the State Board has approved discontinuation of the preparation, use and maintenance of registration poll records by that board.

(b) Following successful use of the registration poll lists for one election and State Board approval of the county board's application to discontinue preparation, use and maintenance of registration poll records, the registration poll records in the ledgers may be removed therefrom. They shall be preserved, along with original voter registration records received after conversion of the file, for as long as registration records are otherwise preserved, organized and labeled in such a manner so that they are available for examination.