If you’ve been waiting to register to vote, wait no longer: the deadline to get yourself registered or to update your voter information in jurisdictions across the Washington region is Tuesday, Oct. 13.

If you’re a Virginia voter, that deadline is pretty much set in stone. If you haven’t registered or dropped your registration in the mail by the end of the day, you likely won’t be able to vote on Nov. 3. It’s easy to do; you can register to vote online here. There have been reports on Tuesday morning of the online system being down, but election officials say any registration completed in person or postmarked by today will be accepted.

D.C. and Maryland also have Oct. 13 deadlines for registering or updating your voter information, but they also offer same-day voter registration during early voting (which starts in Maryland on Oct. 26, and on Oct. 27 in D.C.) and on Election Day itself. But that means you’ll have to vote in person (which could mean waiting in line), and you’ll have to bring proof of residence with you to register at a polling place.

If you do register today in D.C., you’ll automatically be sent a ballot in the mail. In Maryland, you still have to request a mail ballot; the deadline for that is Oct. 20. In Virginia, the deadline to request an absentee ballot is Oct. 23; you can also cast an in-person absentee ballot now through Oct. 31. (This is Virginia’s version of early voting.)

To mark the day, the D.C. Board of Elections is holding a voter registration drive from 10 a.m. to 2 p.m. at the Entertainment & Sports Arena in Ward 8; former players with the Washington Wizards and Washington Football Team will be there, as will the Washington Nationals’ Racing Presidents.

If you need more information, we have voting guides for D.C., Maryland and Virginia. All of our elections coverage is here.