1 Coast Regiment Royal Malta Artillery was formed by the re-designation of 1 Heavy Regiment RMA. This occurred because in December 1940 all Heavy Regiments and Batteries were re-designated as “Coast”. The Regiment was converted to 1 Heavy Anti-Aircraft Regiment RMA in June 1956.
| Dec 40 | Formed from 1 Heavy Regiment RMA | Malta |
| Dec 40 | Malta Command | Malta |
Batteries
| Dec 40 | 1, 2 , 3, 4 |
| Jun 42 | 1, 2 , 3 |
| Oct 42 | 1, 2 , 3, 16 |
| Nov 42 | 1, 2 , 3, 4 (16 Battery re-designated) |
| Dec 44 | 1, 2 , 3 |
| May 45 | 1, 3 |
Locations
| Aug 39 | 1, 2 & 3 Batteries | Harbour Fire Command, Fort St Elmo |
| Jun 40 | 1 Battery | Fort San Rocco & Delimara |
| 2 Battery | Fort Tigne & Campbell Battery | |
| 3 Battery | Fort St Elmo & Fort Ricasoli |