| Activity (1) | Minimum period years (2) | Maximum period years (3) |
|---|---|---|
| Collection of refuse | 5 | 7 |
| Cleaning of buildings | 3 | 5 |
| Other cleaning | 3 | 7 |
| Catering for purposes of schools and welfare | 3 | 5 |
| Other catering | 3 | 5 |
| Managing sports and leisure facilities | 4 | 6 |
| Maintenance of ground | 3 | 5 |
| Repair and maintenance of vehicles | 3 | 5 |