How is the national electoral register created?

United States of America, Mid-Term Congressional Elections, 8 November 2022, Statement of Preliminary Findings and Conclusions, accessed 6 February 2023

“Voter registration is active in all states except North Dakota. Voters can register in person in the jurisdiction of their residence at the Department for Motor Vehicles (DMV), county election offices, state agencies, online, using the NMVRF, or through third parties. The NVRA and HAVA set minimum conditions for registration and provide a registration form template. Twenty-two states and the District of Columbia offer same-day registration, and 23 states implement ‘automatic’ or ‘motor voter’ registration.66 In these cases, voters are automatically registered at the time of applying for or renewing a driver’s license, with states having limited possibilities for an immediate crossmatch comparison. Ahead of these elections, 40 states and the District of Columbia offered online voter registration. While late and election-day registration allows for more inclusive participation, these procedures prevent collecting accurate voter register data, potentially resulting in duplicate entries which might lead to multiple voting, and are not in line with international good practice and previous ODIHR recommendations.”