Supply officer (Royal Navy) scheme (entering Britannia Royal Naval College (BRNC), Dartmouth, Devon, as a Cadet or Midshipman, under terms similar to those direct from civilian life) was open to those supply branch ratings under the age of about 25. Such ratings were called CW candidates, and they were specially reported on for selection to attend the Admiralty Interview Board before final selection for promotion and entry to BRNC. The second avenue of promotion from rating to commissioned officer was to the Special Duties (SD) List. Petty officers and chief petty officers could, with the approval of their commanding officer, become a CW candidate
Structure of the Royal Navy in 1989 affiliated with universities and in 2018 were under the jurisdiction of the Commodore, Britannia Royal Naval College. 14 URNUs had been founded in 1967 and the late 1980s each URNU received one Archer class patrol vessel as dedicated training vessel. However, as four of the 14 Archer vessels went to the Royal Naval Auxiliary Service it is unclear how many URNUs were still active in 1989. The Flag Officer Reserves was a Rear Admiral based in Whitehall, who was responsible for recruitment and training of the Royal Naval Reserve. Each Royal Naval Reserve Division had one River-class minesweeper from the