Register America to Vote Act of 2023 This bill provides for the automatic registration of eligible voters. Specifically, the bill directs each state that has a voter registration requirement for federal elections to automatically register eligible individuals when they turn 18 years of age. The bill also provides for the automatic registration of individuals through state motor vehicle authorities. Individuals must be provided with an opportunity to opt out of automatic voter registration. The Election Assistance Commission must make grants to states to implement these automatic voter registration programs.