The goals of the study are to develop smoking cessation intervention using lay health worker (LHW) outreach and family involvement targeting Vietnamese Americans ages 18 and above in Santa Clara County, CA, to evaluate efficacy of the proposed intervention. The study is a two-arm randomized controlled trial targeting a total of 18 lay health workers (LHW) and 108 dyads of a smoker and a family member from the same household. The hypotheses are: