The needs, issues, and concerns are identified of local elected officials and transportation and emergency personnel from the Washington, D.C., area about signal priority and preemption systems. These needs, issues, and concerns are used to generate a set of system objectives and general requirements that state and local decision makers might use in evaluating these systems in the future. As reported, although emergency and transit agency personnel are actively interested in this technology, they and the other stakeholders have significant questions and reservations to be considered in the adoption and deployment of preemption and priority systems.