The purpose of this report was to investigate why insulation containing chlorofluorocarbon (CFC) is not always recycled correctly and examine if the supervision carried out by municipalities is enough to discourage erroneous handling. Additionally the purpose was to propose actions leading to that more insulation containing CFC is recycled and that municipalities can improve their supervision. The method used was a qualitative study where one questionnaire survey was sent to Swedish municipalities and one to demolition contractors. The results from the survey shows that 70 % of municipalities rarely carry out inspections on known demolition sites. This is mainly due to lack of resources but also due to not being aware of current demolition objects. Awareness is a primary condition for inspections. Often smaller municipalities are better informed which can be a consequence of better local knowledge. The survey shows that the material inventory, which is to take place before the application for demolition is filed, often is of a poor standard and lacks sampling for CFC. Lack of knowledge is pointed out as the main reason for incorrect handling of the material. Another reason is economy since identifying and taking care of hazardous waste is expensive. The level of knowledge needs to be increased among all affected parts and one way of doing so is to improve the cooperation and communication between different parts of the municipality so that more inspections can be conducted.