Physical activity decreases among the population. A more sedentary life style contributes to overweight and obesity which can cause life style related diseases. In the work to increase physical activity among the population physical activity on prescription has developed as a method in health care. In the County Council of Västmanland this working method applies under the concept Prescribed Physical Activity (OFA). This study was accomplished commissioned by the County Council of Västmanland. The aim of the study was to examine the opinions of the head of department, in the department of rehabilitation and the department of medicine in the County Council of Västmanland, about the work with OFA and the work on physical activity targeted to the employees and the population. A qualitative approach was applied for the study through interviews. The results show the difficulties with the introduction of OFA in the departments. The departments lack of routines and objectives for OFA as a work method. But the willingness to work with OFA and the understanding of its significant health effects for patients occurs in the departments. Employees of the department have taken note of the materials and educations available but the work with OFA is making slow progress. Benefits for the employees, regarding physical activity, is compensation from the County Council of Västmanland, and for some departments, half an hour of health related activities a week is available. Several departments are involved in activities to increase physical activity among the employees. The departments have no direct work to the population regarding physical activity. There are no guidelines on how this work should be carried out. The potential for a population-oriented work is considered to be small.