New York state education officials told school administrators to continue enforcing the state’s mask mandate for students and teachers Tuesday despite a judge’s ruling overturning it, causing confusion as some districts rushed to make masks optional.

The Education Department said the state had filed notice that it would appeal Monday’s ruling by a judge on Long Island, a step that could keep the rule in place at least until its planned expiration Feb. 1.

“While these legal steps occur, it is NYSED’s position that schools should continue to follow the mask rule,” said department spokesperson Emily DeSantis.

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But in some districts, administrators immediately made masking optional for students and staff.

“While it is certain this decision will face legal challenges, until otherwise litigated, mask wearing will be optional for students and staff in the Massapequa Schools beginning Tuesday,” the Massapequa School District, in the New York City suburbs of Long Island, said on its website.

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Ruling in a case brought by a group of parents, judge Thomas Rademaker said the governor and state health commissioner didn’t have authority to issue a mask mandate without legislative approval.

The mandate “is a law that was promulgated and enacted unlawfully by an executive branch state agency, and therefore void and unenforceable,” the judge said.

Democratic Gov. Kathy Hochul said she disagreed with the ruling, and Attorney General Letitia James tweeted Tuesday that her office would challenge it.

“We’re appealing last night’s decision that struck down the mask mandate in New York. We will continue to do everything in our power to protect New Yorkers from #COVID19,” James, a Democrat, tweeted.

An appeals hearing in state court was scheduled for Tuesday afternoon.

The state had initially instituted a mandate in April 2020 that required people to wear masks in most indoor settings outside their home. That rule ended in June 2021 for vaccinated people. Hochul announced in mid-December, as COVID-19 infections surged in the state, that it would go back into effect for at least a month. Earlier this month, the state health department said the mandate would be in place until Feb 1.

As school districts waited for the legal questions to play out, parents received mixed instructions, depending on where they live.

Syracuse City Schools were among those following the Education Department’s guidance. “That means that anyone entering any of our schools must continue to wear a mask,” a notice on the district’s website said.

In Westchester County, Mamaroneck Superintendent Rober Shaps made mask-wearing optional.

Republican U.S. Rep. Elise Stefanik criticized Hochul for “ignoring” the ruling and causing unnecessesary confusion. She told parents in her northern New York congressional district to call her office if their children were not allowed in school without a mask.

“Masks are not mandatory for students, period. Yet Kathy Hochul is still trying to force young children to wear a mask in school, shamefully disregarding the rule of law,” Stefanik said in a news release.

In a statement, Hochul said, “My responsibility as Governor is to protect New Yorkers throughout this public health crisis, and these measures help prevent the spread of COVID-19 and save lives. We strongly disagree with this ruling, and we are pursuing every option to reverse this immediately.”

The ruling comes as the omicron wave that gripped New York state appears to be easing. The state averaged around 23,400 new cases of the virus per day in the seven-day period that ended Sunday, down from 74,600 per day during the wave’s peak in early January. Hospitalizations are dropping, too, declining 17% statewide in the past seven days.