The model looks very much Anglo-American on its surface, however, in most cases Dutch paramedics are for all practical purposes autonomous practitioners. The scope of practice and permissible procedures are determined at a national level by the Dutch Ambulance Institute, and all paramedics must function within this guidance. Within the scope of practice, however, all judgment and treatment decisions fall to the paramedic, as in the Autonomous Practitioner model. Each ambulance service is required to employ a medical manager whose role is oversight and quality assurance, and who may be contacted for directions by any paramedic who has reached the limits of their scope of practice, just as in the Anglo-American model. When necessary, however, the paramedic may request a rapid response by a physician, usually by either vehicle or helicopter. In these cases, a great deal of emergency intervention will occur on the scene, with the patient transported ultimately by land ambulance, as in the Franco-German model.