The purpose of this legislation is to improve voter access by requiring all states to allow same-day voter registration during federal elections. This means that individuals can register to vote and cast their ballots on the same day, making it easier for people to participate in elections. Key provisions of the law include that every state must permit eligible individuals to register at polling places on the day of a federal election and during early voting periods. Voters will be able to complete their registration forms at the polling location and immediately vote.