Early style Tac Signs have been placed alongside AoS where they have been positively identified as being used by that unit. See the Early Tac Signs page for an explanation of this system.
Although this Corps used different Arm of Service numbers to the other two Corps, there is some evidence that they had started to conform with the other Corps sometime after 11 April 1940. This process almost certainly stopped when the Corps went into action on 10 May. A photo shows an abandoned Quad of 88 Field carrying the AoS number 9 and photos of other arms vehicles show a change to the “standard” number system.
| HQ Corps Artillery |  |
|
| HQ Corps Medium Artillery |  |
|
| 88 Army Field Regiment |  |
 |
| 60 Army Field Regiment |  |
| 53 Medium Regiment |  |
|
| 59 Medium Regiment |  |
|
| 2 Survey Regiment |  |
 |
| 53 Light Anti-Aircraft Regiment |  |
3 Infantry Division
| HQ RA |  |
| 7 Field Regiment RA |  |
| 76 Field Regiment |  |
| 33 Field Regiment |  |
| 20 Anti-Tank Regiment |  |
4 Infantry Division
| HQ RA |  |
| 77 Field Regiment |  |
| 22 Field Regiment |  |
| 30 Field Regiment |  |
| 14 Anti-Tank Regiment |  |
5 Infantry Division
| HQ RA |  |
| 9 Field Regiment RA | |
| 91 Field Regiment | |
The following units were attached to the Division during May 40:
| A/E Battery 1 RHA |  |
| Battery from 27 Field Regiment |  |
| Battery from 140 Field Regiment |  |
| 5 Medium Regiment |  |
| 92 Field Regiment | |
| 52 Anti-Tank Regiment | |
50 (Northumbrian) Infantry Division
| HQ RA |  |
| 72 Field Regiment | |
| 74 Field Regiment | |
| 65 Anti-Tank Regiment |  |