Initially part of 3 Anti-Aircraft Corps, it came directly under Anti-Aircraft Command when the Corps & Divisions were disbanded in favour of Anti-Aircraft Groups.
Order of Battle 1940-41
| 65 (The Manchester Regiment) Heavy Anti-Aircraft Regiment – by Nov 40 |
| 66 (Leeds Rifles) Heavy Anti-Aircraft Regiment |
| 81 Heavy Anti-Aircraft Regiment – by Nov 40 |
| 19 Light Anti-Aircraft Regiment – by Nov 40 |
| 38 (The King’s Regiment) Searchlight Regiment (part) |
| 39 (The Lancashire Fusiliers) Searchlight Regiment |
| 59 (Warwickshire) Searchlight Regiment – by Nov 40 |
