Changes to Environmentally Sensitive Areas (Breckland) Designation 1987
S.I. 1987/2029
Made by Environmentally Sensitive Areas (Breckland and Suffolk River Valleys) Designation 1988
3 changes. All changes to Environmentally Sensitive Areas (Breckland) Designation 1987
From legislation.gov.uk's record of changes, the official one: see it there.