Modifies provisions for elections

HB 3493 establishes Missouri's centralized "Missouri Voter Registration System" as the official statewide voter list, requiring unique identifiers for all registered voters and regular updates to remove ineligible voters. The bill mandates that local election authorities remove deceased voters based on monthly death certificate reports from the state, and verifies citizenship through state driver's license records, Social Security data, and federal databases (including the SAVE program), with written notice and 30 days for voters to respond before removal. It prohibits using voter registration data for commercial purposes (allowing only election-related use at reasonable fees) and requires coordination between election officials and state agencies to maintain accurate records. This directly affects all Missouri registered voters and election authorities responsible for maintaining voter rolls.