Har vel blitt tatt opp før dette.

Men etter et raskt søk på google fant jeg en ganske handy sak:

http://www.passyourdrugtest.com/mjlaws.htm

California

* 1994 banned in all workplaces (excepting tobacconists), including all restaurants, and in 1998 smoking was banned in bars. Additionally, California prohibits smoking within 20 feet (6.5m) of any door, window or air intake of any government building within the state, including buildings owned or occupied (e.g. leased) by any government entity, including public universities, or public buildings leased to private firms.[4]
* San Luis Obispo, 2 August 1990 became the first city in the world to ban smoking in all public buildings
* Calabasas, 2006 banned in all indoor and outdoor public places, except for a handful of scattered, designated outdoor smoking areas in town. Believed to be the strictest ban in the United States.[5]
* El Cajon, on 14 August 2007, the The El Cajon City Council unanimously passed an ordinance to ban smoking in most public places, including city streets, outdoor patios in restaurants and even outside of the mall; in essence any location considered public domain. Anyone caught smoking in public areas will face fines up to $500. The city previously outlawed smoking in parks, and also requires businesses that sell tobacco products to get a city license.
* Belmont, on 9 October 2007, the Belmont City Council voted to prohibit smoking in parks and other public places and to ban smoking inside apartments and condominiums.[6]
* Beginning in 2008 statewide, smoking in the presence of a minor (17 years or younger) while in a moving vehicle is a misdemeanor offense. The charge is not enough to be pulled over and is cited with a larger offense, such as a moving violation or traffic accident.[7]