A more thorough explanation:

HAVA stands for Help America Vote Act of 2002. It is a law that was created to address the issues that arose during the 2000 presidential election.

HAVA is a bipartisan legislation that aimed to resolve many of the issues in running elections across the country. It mandated voting technology requirements, required state-wide voter registration databases, and increased registration requirements.

The winner of the 2000 presidential election turned on a few hundred votes in Florida, a state full of election day problems. Some of the issues included confusing ballots, faulty voter machines, registered individuals not showing up in databases, voter fraud, and under access to voting by certain populations like military personnel.

To address these issues, HAVA set new requirements and non-binding recommendations for states in running their elections. For example, states must establish state-wide registration databases to avoid confusion on election day when voters did not appear as registered in the county to which they moved. HAVA also required new technology requirements that included testing and certification of voter registration machines that faced many failures in the 2000 elections.

HAVA was created to address the issues that arose during the 2000 presidential election. The law mandated changes to the way elections were run, including the use of new technology and state-wide voter registration databases. These changes were designed to make elections more efficient and accessible to all voters.