After the Falklands War an expansion began in Royal Engineers Explosive Ordnance Disposal (EOD). In 1985 RE EOD teams were established to provide integral support for both 5 Airborne Brigade and 3 Commando Brigade RM.
1 and 2 Troops of 49 EOD Sqn. were detached into a separate Explosive Ordnance Clearance (EOC) group, directly under 33 Engineer Regiment and two new Troops formed within 49 EOD Squadron: 1 (Para) Troop and 2 (Commando) Troop.
Currently the Commando Troop of 821 Explosive Ordnance Disposal Squadron, RE, consists of four EOD and Search teams aligned to the Lead Commando Group.
Source
A short history on Royal Engineer Bomb Dispoal by Lt. Col. E E Wakeling ERD, amended and extended by Lt. Col. R I M MacArthur [more......].