In the United Kingdom, a national nature reserve is a form of statutory nature reserve that are designated by one of the UK's national nature conservation bodies.[1]
Great Britain
In Great Britain, nature reserves designed under Part III of the National Parks and Access to the Countryside Act 1949 that are deemed to be of national importance may be designated as statutory 'national nature reserves' by the relevant national nature conservation body (Natural England, Scottish Natural Heritage, or Natural Resources Wales) using section 35(1) of the Wildlife and Countryside Act 1981.
If a nature reserve is designated by a local authority in Great Britain, then the resulting statutory nature reserve will be referred to as a local nature reserve.