The American Cancer Society encourages smokers to pick today to give up the addictive habit as part of the 34th Great American Smokeout.

But in the United Kingdom, doctors want to take things a step further: They’ve asked the British government to ban smoking in cars at all times.

The 2008 Iowa Clean Air Act banned smoking in most buildings, workplaces, restaurants, bars and entertainment venues. Six states — Arkansas, California, Hawaii, Louisiana, Maine and Oregon — and Puerto Rico ban smoking in cars with children present.