This is a list of the locations for former Royal Observer Corps (ROC) Group Headquarters and the
United Kingdom Warning and Monitoring Organisation (UKWMO) sector controls that received information from ROC posts by dedicated
GPO/
BT landlines. Clusters of posts also had
VHF radio communications with HQs and sector controls, in case of land-line failure, from the cluster Master Posts.
The Royal Observer Corps was a
civil defence organisation operating in the United Kingdom between 29 October 1925 and 31 December 1995, when the Corps' civilian volunteers were stood down. (ROC headquarters staff at
RAF Bentley Priory stood down on 31 March 1996). Composed mainly of civilian spare-time volunteers, ROC personnel wore a
Royal Air Force (RAF) style uniform and latterly came under the administrative control of
RAF Strike Command and the operational control of the
Home Office. Civilian volunteers were trained and administered by a small
cadre of professional full-time officers under the command of the
Commandant Royal Observer Corps; latterly a serving RAF
Air Commodore.
29 Group - Aberdeen (group headquarters at Northfield)
30 Group - Inverness (group headquarters at Raigmore)
Map of ROC Group Headquarters and UKWMO Sector Controls
Map of the United Kingdom showing former ROC Group Headquarters and United Kingdom Warning and Monitoring Organisation Sector and Group Controls. (UNDER CONSTRUCTION)