35 (1st Surrey Rifles) Searchlight Regiment RA (TA) formed in August 1940 by the transfer of 35 (1st Surrey Rifles) Anti-Aircraft Battalion Royal Engineers (TA) to the RA. The Regiment served in 38 and then 27 Anti-Aircraft Brigades in the UK until converted to Light Anti-Aircraft. 35 (1st Surrey Rifles) Searchlight Regiment RA (TA) was converted to 129 Light Anti-Aircraft Regiment RA in March 1942. It was re-constituted as 570 (1st Surrey Rifles) 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.
| Aug 40 | Formed from 35 Anti-Aircraft Battalion Royal Engineers | Camberwell, London, UK | |
| Aug 40 |  |
1 Anti-Aircraft Division, 38 Anti-Aircraft Brigade | London, UK |
| Dec 41 |  |
5 Anti-Aircraft Division, 27 Anti-Aircraft Brigade | Portsmouth, Hampshire, UK |
| Mar 42 | Became 129 Light Anti-Aircraft Regiment |
Batteries
| Aug 40 | 340, 341, 342, 343 |
| Jan 42 | 340, 341, 343 |