摘要:We evaluated the implementation process of Richmond, California’s citywide smoke-free multiunit housing ordinance. We conducted semistructured focus groups with multiunit housing tenants, owners, and managers. Residents understood the harms of secondhand smoke but lacked accurate information about the ordinance and questioned its enforceability. They shared concerns that the city lacked cessation resources for smokers wishing to quit because of the ordinance. To increase compliance with the ordinance, tenants, owners, and managers need accurate information. Implementing smoke-free multiunit housing (MUH) policies is the most effective way to protect MUH residents from secondhand smoke exposure. 1,2 We have discussed how MUH tenants, owners, and managers view the implementation of Richmond, California’s citywide smoke-free MUH ordinance and potential barriers to its equitable implementation across the city’s diverse neighborhoods. The majority (78%) of Richmond’s 106 516 residents are ethnic minorities; 38% of Richmond’s population live in MUH residences. 3,4 In 2009, Richmond passed an ordinance to prohibit the smoking of any tobacco product or marijuana in residential dwellings containing 2 or more units; it was fully implemented in 2011. 5