(1) The Secretary of State with the assistance of the election commissioners and county clerks shall perform list maintenance with respect to the computerized statewide voter registration list on a regular basis. The list maintenance shall be conducted in a manner that ensures that:
(a) The name of each registered voter appears in the computerized list;
(b) Only persons who have been entered into the register in error or who are not eligible to vote are removed from the computerized list; and
(c) Duplicate names are eliminated from the computerized list.
(2) The election commissioner or county clerk shall verify the voter registration register by using (a) the National Change of Address program of the United States Postal Service and a confirmation notice pursuant to subsection (3) of this section or (b) the biennial mailing of a nonforwardable notice to each registered voter. The Secretary of State shall provide biennial training for the election commissioners and county clerks responsible for maintaining voter registration lists. No name shall be removed from the voter registration register for the sole reason that such person has not voted for any length of time.
(3) When an election commissioner or county clerk receives information from the National Change of Address program of the United States Postal Service that a registered voter has moved from the address at which he or she is registered to vote, the election commissioner or county clerk shall update the voter registration register to indicate that the voter may have moved and mail a confirmation notice by forwardable first-class mail. If a nonforwardable notice under subdivision (2)(b) of this section is returned as undeliverable, the election commissioner or county clerk shall mail a confirmation notice by forwardable first-class mail. The confirmation notice shall include a confirmation letter and a preaddressed, postage-paid confirmation card. The confirmation letter shall contain statements substantially as follows:
(a) The election commissioner or county clerk has received information that you have moved to a different residence address from that appearing on the voter registration register;
(b) If you have not moved or you have moved to a new residence within this county, you should return the enclosed confirmation card by the regular registration deadline prescribed in section 32-302. If you fail to return the card by the deadline, you will be required to affirm or confirm your address prior to being allowed to vote. If you are required to affirm or confirm your address, it may result in a delay at your polling place; and
(c) If you have moved out of the county, you must reregister to be eligible to vote. This can be accomplished by mail or in person. For further information, contact your local election commissioner or county clerk.
(4) The election commissioner or county clerk shall maintain for a period of not less than two years a record of each confirmation letter indicating the date it was mailed and the person to whom it was mailed.
(5) If information from the National Change of Address program or the nonforwardable notice under subdivision (2)(b) of this section indicates that the voter has moved outside the jurisdiction and the election commissioner or county clerk receives no response to the confirmation letter and the voter does not offer to vote at any election held prior to and including the second statewide federal general election following the mailing of the confirmation notice, the voter's registration shall be canceled and his or her name shall be deleted from the voter registration register.