FOR YOUR INFORMATION:
Contra Costa County Smoking Ordinance: Prohibits smoking of tobacco and/or marijuana at both indoor AND outdoor restaurants, bars, and lounges, in public areas and places of employment, and both inside and outside residences of multi-unit housing.*
Click here for a summary of this ordinance: SMOKING ORDINANCE
*Source: http://cchealth.org/tobacco/secondhand-smoke/ordinance.php