The decision to have medical attendance at accidents has changed the structure of the entire accident rescue service. Standardization (DIN) has provided the basis for efficient equipment and new legislation regarding the special training of orderlies as ambulancemen has ensured an highly expert emergency service personnel. The manifold duties of the emergency service physician are outlined. To perform them competently he needs not only a thorough knowledge of the various branches of medicine, especially of resuscitation and maintenance of vital function, but he must also be acquainted with techniques for the rescue and extrication of casualties and with radio-communication. Suggestions are made for the training of emergency medical personnel.