A new rule went into effect today that would allow an estimated number of 800,000 non-citizens to vote in the forthcoming local elections in New York City.

The measure, which was passed by the City Council last month, was automatically signed into law by new Mayor Eric Adams. It implies that non-citizens will be able to vote in local elections as early as next year, unless the law is overturned by a judge, as opponents have promised.

Several cities in the United States already allow non-citizens to vote in municipal elections. Non-citizens are limited in their voting rights, as they are unable to vote for president or members of Congress, as well as participate in state elections for governor, judges, or lawmakers.

By July, the New York Board of Elections must have a plan in place. Non-citizens must register to vote under the new law, which some may find difficult. Non-citizens, including those authorized to work in the United States, the so-called "Dreamers," would have to present proof of having lived in the city for at least 30 days on a separate ballot for municipal elections.

Non-citizens account for one out of every nine voting-age residents of New York City .