“…Generally, residents were knowledgeable of the smoke-free policy and supportive of it ( Kennedy et al, 2015 , Rokicki et al, 2016 ), with non-smokers more supportive than smokers ( Kennedy et al, 2015 ). However, enforcement of the policy was a concern, with some evidence that such enforcement was poor ( Hernandez et al, 2019 , Jiang et al, 2018 , Kennedy et al, 2015 ). Consistent with these concerns, evaluations of these smoke-free housing policies documented reductions, but not elimination, of smoking within the buildings ( Hernandez et al, 2019 , Pizacani et al, 2012 , Rokicki et al, 2016 ).…”