46 Light Anti-Aircraft Regiment RA (TA) was formed from 76 Battery ex 24 Light Anti-Aircraft Regiment, in July 1940. The Regiment served in Air defence Great Britain until March 1943. It then moved to North Africa. 46 Light Anti-Aircraft Regiment RA (TA) was disbanded in August 1944.
Illustrations of the formation badges under which a unit served or supported are given. This is no guarantee that the unit used this formations badge.
| Jul 40 | Formed from a battery from 24 Light Anti-Aircraft Regiment |
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| Jul 40 |  |
9 Anti-Aircraft Division, 5 Anti-Aircraft Brigade | Gloucester, Gloucestershire, UK |
| May 41 |  |
8 Anti-Aircraft Division, 55 Anti-Aircraft Brigade | South West England |
| Aug 41 |  |
5 Anti-Aircraft Division, 65 Anti-Aircraft Brigade | South West England |
| Mar 43 |  |
Middle East Forces | N Africa |
| Aug 44 | Disbanded |
Batteries
| Jul 40 | 76 |
| Mar 41 | 76, 219 |
| Jul 41 | 76, 219, 243 |
| Aug 41 | 219, 243 |
| Oct 42 | 137, 219, 243 |