Justice Samuel A. Alito Jr. on Tuesday put a hold on counting some challenged ballots in Pennsylvania while the Supreme Court continues to review a lower court’s decision that they be tallied.

The administrative stay Alito issued involves a unanimous decision of a three-judge panel of the U.S. Court of Appeals for the 3rd Circuit. It said that mail-in ballots that were received on time but lacked a required date on the outer envelope should be counted. Alito is the justice who receives emergency applications from the 3rd Circuit.

The state’s requirement is that mail-ballot voters “fill out, date and sign” a form declaration on the outer envelope used to return ballots. But the federal judges said not counting the votes of those who did not provide a date violated federal civil rights law because the requirement was immaterial to the voters’ qualifications. There are no indications of fraud, the ballots were received by the state’s deadline and election officials noted they would have counted ballots with the wrong date but not those with no dates at all, the judges said.

“We are at a loss to understand how the date on the outside envelope could be material when incorrect dates — including future dates — are allowable but envelopes where the voter simply did not fill in a date are not,” Judge Theodore McKee wrote. “Surely, the right to vote is made of sterner stuff than that.”