 As of July 2018, the most recent statewide smoking ban is Alaska's, which was signed into law on July 18, 2018, and went into effect on October 1, 2018.As further detailed in this list, smoking laws vary widely throughout the United States.Some places in the United States do not generally regulate smoking at all, some ban smoking in certain areas and not others, and some ban smoking nearly everywhere, even in outdoor areas (no state bans smoking in all public outdoor areas, but some local jurisdictions do).