62 (The Loyals) Searchlight Regiment RA (TA) formed in August 1940 by the transfer of 4th Battalion The Loyal Regiment (North Lancashire) (62 Searchlight Regiment) (TA) to the RA. The Regiment served in Anti-Aircraft Command until its conversion. 62 (The Loyals) Searchlight Regiment RA (TA) was converted to 150 Light Anti-Aircraft Regiment in April 1943. It was re-constituted as 597 (The Loyal) Light Anti-Aircraft/Searchlight Regiment RA (TA) in January 1947.
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.
| Nov 38 | 4th The Loyal (North Lancashire) Regiment (62 Searchlight Regiment) |
Preston, Lancashire, UK | |
| Aug 40 | Became RA | ||
| Aug 40 |  |
2 Anti-Aircraft Division, 53 Light Anti-Aircraft Brigade | North West England |
| Dec 42 | |
2 Anti-Aircraft Division, 50 Anti-Aircraft Brigade | Midlands, UK |
| Jan 43 |  |
3 Anti-Aircraft Group, 69 Anti-Aircraft Brigade | South West England |
| Apr 43 | Became 150 Light Anti-Aircraft Regiment |
Batteries
| Nov 38 | 435, 436, 437 |