Utah will not exclusively rely on a database revamped under the direction of President Donald Trump to check voters’ citizenship status, Lt. Gov. Deidre Henderson said Friday, after the U.S. Supreme Court allowed the controversial program’s deployment.

But it is a tool the state is using to flag voter records that need additional review.

“Utah verifies the citizenship of every voter,” Henderson, the state’s top election official, said in a statement to The Salt Lake Tribune. “Because the SAVE program has limitations, we don’t use it on all voters, but selectively as a last line of defense to ensure only citizens are registering to vote.”

The Department of Homeland Security’s Systematic Alien Verification for Entitlements data system — known as SAVE — has been criticized for mistakenly labeling thousands of Americans as noncitizens in past searches and has raised concerns of eligible voters being purged from rolls.

Voting rights and data privacy advocates took the department to court, arguing it was using Americans’ personal information to create “an error-laden master citizenship database that endangers millions of Americans’ privacy and voting rights.”

In a previous interview with The Tribune, Henderson said her office put the names of 70,000 Utah voters whose citizenship wasn’t immediately verifiable through the SAVE database.

It identified 11,000 of those Utahns as “potential noncitizens.” After her office conducted its own manual review, Henderson said, “the vast majority are verifiably citizens.”

A comprehensive audit Henderson’s office completed in May found 27 noncitizens and 25 “probable noncitizens” — less than a hundredth of a percentage point of the more than 2 million voter records it reviewed. Officials immediately canceled noncitizens’ registrations and gave probable noncitizens 30 days to prove their citizenship.

A separate group of auditors working for the Legislature later evaluated the review’s “methodology and supporting documentation and found its approach appeared comprehensive,” they wrote.

How the state is verifying

It is illegal for noncitizens to vote in elections. And Utah passed a law earlier this year requiring documentary proof of citizenship to vote in state contests.

To receive a ballot for this November’s state elections, Utahns must have provided citizenship proof to their county clerk.

The vast majority of Utah voters have already done so by including their driver license number or the last four digits of their Social Security number in voter registration forms.

County clerks are notifying voters whose citizenship verification is not on file. Other documents that qualify as documentary proof include birth certificates, a Certificate of a Degree of Indian Blood or Bureau of Indian Affairs birth affidavit, tribal treaty or tribal enrollment cards, a U.S. passport or U.S. naturalization documents.

Registered voters who arrive at the polls this fall without that documentation on record or with them will receive a ballot including only the federal election for their congressional representative.

Trump v. Henderson

The high court’s ruling comes as Trump’s Justice Department seeks entire, unredacted voter databases from states — including Utah — to share with Homeland Security.

That would include sensitive personal information, such as voters’ full name, birth date, residential address, and their state driver license number or the last four digits of their Social Security number.

The Trump administration is suing Henderson for refusing to hand over Utah’s database. And earlier this month, the Justice Department disclosed it is investigating her for taking that position.

Henderson argues the federal government has no legal basis for demanding the sensitive voter data and that complying would violate Utah’s data privacy laws.

Utah is one of 30 states, plus Washington, D.C., that are being sued by the Justice Department for pushing back against efforts to obtain their voter databases.

District courts have ruled against the federal government in 25 of those cases, and appellate courts have so far agreed.

The federal district judge overseeing the case against Utah has not yet scheduled a hearing.