To minimize the impact of bus stops on traffic, when possible, it has been the general practice of traffic engineers to encourage the use of "out-of-the-traffic-lane" bus stops. Such bus stop designs are also thought to increase passenger safety as they board and alight. As traffic volumes increase, however, it becomes more difficult for transit buses to quickly merge into traffic and to continue along their route from such a stop. A typical transit bus operator may pull into and out of 400 stops in an 8-h shift. To mitigate bus delays and maintain safety, several countries in Europe enacted laws in the 1970s to provide priority to public transit buses when leaving a bus stop. In the United States and Canada such laws are generally referred to as "Yield to Bus" (YTB) laws. Currently, there are four states and two provinces that have enacted YTB laws. This study investigated the practices and experiences of YTB programs at transit agencies in the states of California, Florida, Oregon, and Washington and in the province of British Columbia. It involved several tasks, including surveys of transit agencies that provide fixed-route services in these four states and one province, surveys of operators at four transit agencies with YTB programs, reviews of documents and websites, the analysis of safety data from three transit agencies, and six on-site case studies.