With the presidential election on Tuesday, there is still an opportunity for potential voters who haven't registered to participate, as some states allow "day-of registration" on Election Day.

Those who want to vote in-person Tuesday still have the option if they live in one of the 21 states that offer Election Day registration.

Below is the list of states that allow Election Day registration. There is also Election Day registration in Washington, D.C.

  • California
  • Colorado
  • Connecticut
  • Hawaii
  • Idaho
  • Illinois
  • Iowa,
  • Maine
  • Maryland
  • Michigan
  • Minnesota
  • Montana
  • Nevada
  • North Dakota
  • New Hampshire
  • Rhode Island
  • Utah
  • Vermont
  • Washington
  • Wisconsin

Possible voters in these states can go to their polling place on the day of the election to register. All they need is a valid photo ID with their current address, or proof of residence if the address isn’t current.

For voters that live in North Carolina, there are a few extra steps they have to take before they're able to vote.

“If an individual becomes qualified to vote between the registration deadline and Election Day, then the individual may apply to register on Election Day by submitting an application to: a member of the county board of elections, the county director of elections, or the chief judge or a judge of the precinct in which the person is eligible to vote. If the application is approved, the individual may vote the same day,” Vote.org notes.

New Mexico will start same-day registration in 2021.

Vote.org suggests double-checking to make sure no election rules have changed and to check the state’s rules before heading to the polls.

People wait in line to cast their ballots at an early voting location in Smyrna, Georgia
People wait in line to cast their ballots at an early voting location in Smyrna, Georgia AFP / Elijah Nouvelage