We participated in, and reviewed notes from, meetings, including meetings that led to the development of the focus on teen drinking parties and social host ordinances, meetings of a coalition advisory board (CAB) (described below) which were convened in order to partner with the Wake Forest School of Medicine (WFSM) study team on the development of funding proposals, and meetings of various groupings of the partners to carry out the collaborative project. Members of the WFSM study team also participated in visits to each of the 11 communities actively involved in carrying out the intervention. This involved meetings with coalition staff, community members (including youth and parents), law enforcement officials, and other local policymakers, including mayors, city council members, county commissioners, school superintendents, and city and county attorneys.