This report aims to be a base for valuating risk for the general public when using disposed land previously utilized as military firing ranges and training areas. Risk is defined here as the remaining risk after risk reduction measures have been applied, and it only covers accidents with undexploded ordanance (UXO). The material in the report consists primarily of Swedish publications containing guidelines for acceptable risk related to industrial activities and transportation of dangerous goods. A review of risk criteria and guidelines in other countries for the same activities, as well as for UXO related risks have also been included. As criteria for individual risk is proposed to set the value 10-5 per year as the limit, over which the risk always should be considered unacceptable, and 10-7 per year as the limit, under which the risk can be considered negligible. In the region between these limits ALARP should be applied. As criteria for the societal risk it is proposed that an upper limit, over which the risk is always unacceptable, is set as an FN criteria of ??=10-4 for ??=1, and the inclination -2. The limit under which the risk can be considered negligible should be an FN criteria with ??=10-6 for ??=1, and the same inclination. For accidents with more than 10 people involved the general tolerance in society is low. The upper limit is therefore set as ??=10-9 for ??>10. In the region between the upper and lower limits ALARP should be applied. The risk criteria is applicable to voluntary activities on disposed, previous military firing ranges and training areas, and includes the risk for being killed or seriously injured (definition in accordance with the Swedish proposition 2008/09:93) in an UXO related incident.