Allows for same-day voter registration

HB 2243 allows eligible Missouri residents who are at least 17 and a half years old to register to vote on the same day as an election, provided they meet standard identification requirements. The bill permits individuals to complete registration in person at designated locations or through approved online systems up to the day of the election, with specific provisions for new residents and military personnel returning from deployment. While maintaining existing rules that prevent incarcerated individuals or those on felony probation from voting, the law removes the previous deadline requiring registration weeks before an election. This change directly affects voters who have recently moved to the state or whose registration documents were lost, enabling them to participate in upcoming elections without waiting for the next cycle.