| Change since | |
 |
1970 |
|
1990 |
|
1994 |
Coverage: England
Source: ODPM
- In 2000, 62 per cent of the land permitted for mineral extraction working was covered by restoration conditions, and 44 per cent was covered by aftercare conditions.
- Information for earlier years about the conditions attached to permissions for mineral working sites is not available on a consistent basis.