Headquarters Signals (CDN III/312)

Headquarters Signals War Establishment
Effective from	28 September 1942
Country	Canada
Establishment ID	CDN III/21

The Second World War war establishment for a Canadian Headquarters Signals started out as CDN III/21 and was later renumbered to be CDN III/312. The establishment was originally used as part of a higher formation signals unit such as:

Army Signals

General Headquarters Signals

Line of Communication Signals

Air Formation Signals

however later a separate establishment was created for the General Headquarters and Line of Communication Signal units (CDN III/301). This left CDN III/312 used for:

Army Group Signals

Army Signals

Air Formation Signals (Tactical).

CDN III/21/1 - effective 28 September 1942

CDN III/21/1 - Amendment 1 - effective 16 August 1943

CDN III/21/1 - Amendment 2 - effective 21 February 1944

CDN III/312/1 - effective 3 April 1944

CDN III/312/1 - Correction

CDN III/312/1 - Amendment 1 - effective 6 May 1944

CDN III/312/1 - Amendment 2 - effective 16 May 1944

CDN III/312/1 - Amendment 2 - Correction

CDN III/312/1 - Amendment 3 - effective 22 June 1944

CDN III/312/1 - Amendment 4 - effective 5 July 1944

CDN III/312/1 - Amendment 5 - effective 5 July 1944

CDN III/312/1 - Amendment 6 - effective 7 August 1944

CDN III/312/1 - Amendment 7 - effective 16 August 1944

CDN III/312/1 - Amendment 8 - effective 5 September 1944