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Unofficial ballot drop boxes have popped up across California ahead of Election Day on Nov. 3, causing confusion and prompting state officials to order the Republican Party to remove the ones they distributed.

Meanwhile, local election officials are urging voters to make sure they’re dropping off their mail ballots at official drop boxes.

Below, you’ll find a link to each county’s registrar of voter website that has a list or map of legal drop box locations:

Per the California Secretary of State’s Office, the deadline is by close of polls at 8 p.m. on Nov. 3.

Voters can also drop off their ballots at a polling place by the same deadline.

People who want to send them back by mail must have their ballots postmarked on or before Nov. 3. No stamp is required.

“If you are not sure your vote-by-mail ballot will arrive in time if mailed, bring it to any polling place in the state between 7:00 a.m. and 8:00 p.m. on Election Day,” the state website says.

Voters can track their ballots by signing up for call, text or email alerts from the state.

See KTLA’s election guide here for more information about voting.