Starting on October 22, the Federal Aviation Administration eliminated the rule that required an off switch for the "No smoking" sign, even though smoking on U.S. flights officially ended decades ago.

“Those no smoking signs should be always, always, always on there,” she said. “People still try to smoke on the airplane.” Niraj Chokshi writes about aviation, rail and other ...

A U.S. rule from 1990 requires the ‘No Smoking’ sign on planes to be operated by the flight crew.

It needed an exemption from requirements flight crew be able to turn off "No Smoking" signs. United received an exemption for Boeing jets in 2020, but ordered the A321neos a year later.

"While 'No Smoking' signs may seem like an old and outdated practice, they are still a necessity for a few different reasons," Maddi Bourgerie, travel expert at RVshare, tells Thrillist.