Travelers boarding a train at Amtrak's Penn Station, Aug. 6, 2020, in New York. If Congress moves and approves President Joe Biden's plan to increase Amtrak funding, folks at Penn Station could one day board a train to Scranton. (AP Photo/Mark Lennihan) Amtrak Train at New York Penn Station
Travelers boarding a train at Amtrak's Penn Station, Aug. 6, 2020, in New York. If Congress moves and approves President Joe Biden's plan to increase Amtrak funding, folks at Penn Station could one day board a train to Scranton. (AP Photo/Mark Lennihan)

The TSA is extending the mask mandate on planes and public transportation through April 18, while taking steps that could lead to lifting the rule.

WASHINGTON — One more month. That’s how long you’ll have to continue to wear masks on planes and public transportation.

The Transportation Security Administration is extending the mask mandate on planes and public transportation through April 18, while taking steps that could lead to lifting the rule.

The mask mandate was scheduled to expire March 18.

TSA officials said the extra month will give the US Centers for Disease Control and Prevention time to develop new, more targeted policies that will consider the number of cases of COVID-19 nationally and in local communities, and the risk of new variants.

The TSA enforces the mask rule, which extends to planes, buses, trains, and transit hubs.

As of March 3, more than 90% of the US population lived in areas with low or medium COVID-19 case levels, meaning that the CDC no longer recommends face masks in public indoor settings.

Locally, 43 of Pennsylvania’s 67 counties currently have low COVID-19 case levels, according to the CDC.

A decision to eventually scrap the mask requirement — one of the last vestiges of nationwide pandemic rules — has grown more likely in recent weeks as more states, even those led by Democratic governors, relaxed their own mandates for wearing masks indoors, and the CDC eased its recommendations.

That led critics to question why the CDC would allow maskless people to gather in movie theaters and sports arenas but not on planes.

White House press secretary Jen Psaki said Thursday that deciding on the right policy for travel was more complicated than setting standards for local communities to follow.

“If you’re moving from one zone to another and picking people up … it’s a little bit different, and that requires some consultation, which is what (CDC officials) are going to endeavor to do between now and April 18,” Psaki said.

CDC Director Dr. Rochelle Walensky said last week that her agency must study the science around virus transmission “but also the epidemiology and the frequency that we may encounter a variant of concern or a variant of interest in our travel corridors.”

The federal mask mandate was imposed in January 2021, days after President Joe Biden took office, and has been extended several times. The Trump administration had declined to require masks on public transportation, but airlines began requiring them in mid-2020 to reassure passengers worried about contracting the virus.

The requirement became a lightning rod for confrontation between some passengers and airline crews. Since the start of 2021, airlines have reported more than 6,000 incidents of unruly passengers, most of them involving disputes over mask wearing. That history could make it unlikely for airlines to require masks once the federal rule lapses.

“I don’t think the airlines have any desire to impose their own requirements at this point against a public that is weary of these restrictions,” said Henry Harteveldt, a travel-industry analyst with Atmosphere Research Group.

In September, the TSA doubled the fines for people who refused to wear masks on public transportation to $500 to $1,000 for first-time offenders and up to $3,000 for repeat violations.

News of the extension and policy review was first reported by Reuters.

Associate editor Patrick Berkery contributed to this report.