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Delta airplanes are seen at John F. Kennedy International Airport in Queens, New York City, on Dec. 26, 2021.JEENAH MOON/Reuters

A federal judge in Florida said on Monday a U.S. mask mandate on public transportation is unlawful, overturning a Biden administration effort to reduce the spread of COVID-19.

Last week, U.S. health officials extended by 15 days the mandate requiring travellers to wear masks on airplanes, trains, and in taxis, ride-hailing vehicles or transit hubs, saying they needed time to assess the impact of a recent rise in COVID-19 cases.

The ruling by U.S. District Judge Kathryn Kimball Mizelle, an appointee of president Donald Trump, came in a lawsuit filed last year in Tampa, Fla., by a group called the Health Freedom Defense Fund.

Justice Mizelle said the CDC had exceeded its authority with the mandate, had not sought public comment and did not adequately explain its decisions.

The Transportation Security Administration and Federal Aviation Administration declined to comment. The White House and Centers for Disease Control and Prevention (CDC) did not immediately comment.

The CDC first issued a public-health order requiring masks in interstate transportation in February, 2021. The Transportation Security Administration (TSA) issued a security directive to enforce the CDC order.

The judge sent the issue back to the CDC. It was not clear if the judge’s order would take immediate effect.

Industry groups and Republican lawmakers had wanted the administration to immediately end the 14-month-old mask mandate last week.

Airlines for America, for example, had urged the Biden administration “to lean into science and research, which clearly support lifting the mask mandate. It makes no sense to require masks on a plane when masks are not recommended in places like restaurants, bars or crowded sports facilities.”

The group, which represents major U.S. passenger airlines, did not have an immediate comment on Monday’s ruling.

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