United States federal law does not allow the sale of tobacco products to people Vaping is popular among teens
Though finding ultra light cigarettes in stores proves to be more difficult these days, due to labeling restrictions that prevent cigarette brands from using the term extra light or ultra light. Typically, in Canada, light cigarettes are distinguished by color terms
Department of Health and Human Services, Public Health Service, Centers for Disease Control and Prevention, National Center for Chronic Disease Prevention and Health Promotion, Office on Smoking and Health, Atlanta (GA), 453-536
They used to be dominant, but due to the popularity of heated tobacco, the recent market share is about half and half , and in some places, they can even be a minority