Part 19 Development by the Crown or for national security purposes

1. Class A – general development by the Crown
2. Class B – extension or alteration of an operational Crown building
3. Class C – developments on operational Crown land
4. Class D – hard surfaces for operational Crown buildings
5. Class E – development on operational Crown land relating to an airbase
6. Class F – development on operational land within an airbase
7. Class G – development on operational land outside an airbase
8. Class H – development on operational land by the Crown connected with air traffic services
9. Class I – emergency use of land by the Crown connected with air traffic services
10. Class J – use of land etc by the Crown connected with air traffic services
11. Class K – use of land by the Crown in relation to surveys etc
12. Class L – use of buildings by the Crown on an airbase connected to air transport services etc
13. Class M – development by the Crown on operational Crown land connected to rail
14. Class N – development by the Crown on operational Crown land connected to shipping etc
15. Class O – use of land by the Crown for spreading of dredged material
16. Class P – development by the Crown on operational Crown land etc relating to aids to shipping
17. Class Q – development by the Crown relating to an emergency
18. Class QA – development by the Crown relating to a pandemic
19. Class R – erection etc of gates, fences etc by the Crown for national security purposes
20. Class S – closed circuit television cameras for national security purposes
21. Class T – electronic communication apparatus etc for national security purposes
22. Class TA – development by the Crown on a closed defence site
23. UInterpretation of Part 19