Rural Affairs Directorate and Predecessors, Wildlife: AT 85.
Sponsorship of English Nature and Joint Nature Conservancy Council files (SPB Series): AT 133.
Countryside and Recreation Directorate files (CYD Series): AT 134.
Minutes and papers of the National Park Policies Review Committee are in AT 24. Records of the National Park Policies Review Committee (Sandford Committee) are in AT 38. For records relating to byelaws of nature reserves, see AT 17.
The Countryside Information System dataset is in AT 73.
The series AT 28 contains material dating from 1835; the other series date from 1949.