Houston Communities for Safer Indoor Air (HCSIA) is one example of a growing national movement of grassroots organizations supported by Tobacco Policy Change, a national initiative of the Robert Wood Johnson Foundation. These organizations are ensuring the continued momentum on effective tobacco control policies and extending that momentum to communities where people are most vulnerable to tobacco's devastating impact. Launched in 2004, the $12 million program reflects RWJF's long-standing commitments to reduce tobacco use and help Americans live healthier lives.