Mail-in voting is a process that allows voters to cast their ballots by sending them through the mail instead of going to a polling place. This method is often used to increase voter participation, especially for those who may have difficulty accessing polling locations, such as the elderly or people with disabilities. Voters typically receive a ballot in the mail, which they fill out and return by a specified deadline. To ensure that mail-in voting is secure, many states require voters to provide identification or a signature that matches their registration. Ballots are usually sent out several weeks before an election, giving voters ample time to complete and return them. This system can help streamline the voting process and reduce long lines at polling places on election day.