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 ...

Hotels can still allow smoking in up to 20 percent of their rooms, and smoking can be allowed in approved designated areas at shopping malls and work places in the upscale city of 23,000 residents.

"While 'No Smoking' signs may seem like an old and outdated practice, they are still a necessity for a few different reasons," Maddi Bourgerie, travel expert at RVshare, tells Thrillist.