Tennessee Code Title 2. Elections § 2-2-134

(a) When a voter registration is required to be purged, the administrator shall place the permanent registration records of the voter in a file of purged registration records, which is a public record.  The county election commission shall retain the file of purged registration records for two (2) years from the date of the purge, after which time the county election commission may destroy the purged registration records.

(b) The administrator shall record the reason for the purge in the voter registration system and shall maintain any associated reports or other records supporting the purge until the purged registration record is destroyed.

(c) Upon purging a registration record, the administrator shall determine whether the voter has an outstanding or uncounted absentee ballot.  If the voter has an outstanding or uncounted ballot, it must be marked “Rejected,” except as otherwise provided by § 2-6-306.