CDC extends travel mask requirement to May 3 as COVID rises

"In order to assess the potential impact the rise of cases has on severe disease, including hospitalizations and deaths, and health care system capacity, the CDC order will remain in place at this time," the agency said in a statement.

When the Transportation Security Administration, which enforces the rule for planes, buses, trains and transit hubs, extended the requirement last month, it said the CDC had been hoping to roll out a more flexible masking strategy that would have replaced the nationwide requirement.

The mask mandate is the most visible vestige of government restrictions to control the pandemic, and possibly the most controversial. A surge of abusive and sometimes violent incidents on airplanes has been attributed mostly to disputes over mask-wearing.

Airlines have lobbied for months to kill the requirement, arguing that effective air filters on modern planes make transmission of the virus during a flight highly unlikely. Republicans in Congress also fought to kill the mandate.

Critics have seized on the fact that states have rolled back rules requiring masks in restaurants, stores and other indoor settings, and yet COVID-19 cases have fallen sharply since the omicron variant peaked in mid-January.

"It is very difficult to understand why masks are still required on airplanes, but not needed in crowded bars and restaurants; in packed sports arenas; in schools full of children; or at large indoor political gatherings," Nicholas Calio, the CEO of industry trade group Airlines for America, said Wednesday in a letter to the heads of the CDC and the Health and Human Services Department. "Simply put, an extension of the mask mandate does not make sense."

There has been a slight increase in cases in recent weeks, with daily confirmed cases nationwide rising from about 25,000 per day to more than 30,000. More than 85% of those cases are the highly contagious BA.2 strain. Those figures could be an undercount since many people now test positive on at-home tests that are not reported to public health agencies.

Severe illnesses and deaths tend to lag infections by several weeks. The CDC is awaiting indications of whether the increase in cases correlates to a rise in adverse outcomes before announcing a less restrictive mask policy for travel.

A poll in mid-March by the Kaiser Family Foundation found that Americans are evenly divided over keeping the mask rule for transportation.

The poll found that 51% wanted the mandate to expire and 48% said it should remain in place – in effect, a tie, given the poll's margin of error. Democrats overwhelmingly supported the rule, and Republicans were even more united in opposing it. Vaccinated people and those with chronic health conditions favored keeping the rule, but by smaller margins.

Airlines imposed their own mask mandates in 2020, when the Trump administration declined to take action. Unions representing flight attendants, which once backed mask rules, now decline to take a position because their members are divided over the issue.

It is unclear whether eliminating the rule would make people more or less likely to travel on planes or subways.

Ed Bastian, the CEO of Delta Air Lines, said that some people might start flying if they don't have to wear a mask, and others might stop flying if other passengers are unmasked. He called both groups "fringe," and he predicted that many people will continue to wear masks even if the rule is dropped.

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David Koenig reported from Dallas. AP Health Writer Mike Stobbe in New York contributed to this report.