permit the use of a confirmation letter to verify a voter's registration.

SB 31 allows South Dakota voters to use a confirmation letter (instead of just a postcard) to verify their registration status. The letter must include the voter's current information, instructions for confirming details or updating an address within 30 days, and a warning that failure to respond will make their registration inactive. This directly affects voters who receive these notices from county auditors due to potential address changes or undeliverable mailings. The bill updates existing voter registration maintenance procedures to clarify the required content and purpose of these verification notices.