Appropriate grazing management is essential to help maintain the wildlife conservation and biodiversity value of most semi-natural grasslands. Stocking requirements are influenced both by the specific sward requirements of the site and by factors such as climate, location, topography and soil wetness. A study, funded by the Countryside Council for Wales, English Nature, Scottish Natural Heritage and the Environment and Heritage Service for Northern Ireland, aimed to provide conservation site managers and agri-environment project officers with updated guidance on stocking levels. Current grazing prescriptions from all UK agri-environment schemes were also reviewed.