Motorcoach safety has received increased public attention after several serious accidents during 2011, some of which involved curbside carriers. As a result, the National Transportation Safety Board conducted an investigation of motorcoach safety with a focus on curbside operations. This report (1) describes the characteristics of the curbside business model among interstate motorcoach carriers; (2) describes the safety record of interstate motorcoach carriers, including those that use a curbside business model; and (3) evaluates the adequacy of safety oversight for interstate motorcoach carriers using a curbside business model.