Ministry of Defence: Defence Council Instructions (Royal Navy)

Ministry of Defence: Defence Council Instructions (Royal Navy)

Printed Defence Council Instructions (DCI's) for the Royal Navy, other than books of regulations and manuals, which had general applications to ships, establishments and personnel. They replaced Admiralty Fleet Orders (AFO's). The series includes DCIs (General) which were distributed throughout the three services. Subject indexes to the DCIs are included in the series.

A detailed description of the application of the new system within the Royal Navy will be found at AFO 465 of 1964 (ADM 182/272).:

Under the post 1964 system DCIs were issued separately for each service but were all divided into parts as below

  • Part I Administrative and General
  • Part II Service Personnel
  • Part III Training and Operational
  • Part IV Stores, Equipment and Servicing
  • Part IV Stores, Equipment and Servicing
  • Part V Books, Stationery and Correspondence
  • Part VI Civilian Personnel
  • Part VII Confidential
  • Part VIII Miscellaneous

Under this system the following AFOs were not issued in the DCI (RN) series but were promulgated as follows:

  • "A" Series. "Approved Alterations and Additions to RN Ships and Vessels", continued to be issued with and issue number prefixed by the letter "A" i.e. A.1/64
  • "S" Series. This series was known as " RN Signal Orders" and was issued in the "S", "SC" and "SPC" series as hitherto. The term "AFO" was dropped but otherwise they appeared as before.
  • "P" Series. (Amendments to books). The non-confidential series continued to be issued as previously except that the number was prefixed "P" only and no longer bore the letters "AFO". The confidential series bore a series of numbers prefixed "P(C)". In addition both series were entitled "RN Book Amendment Series".

Related Material:
For earlier Admiralty fleet orders, see ADM 182
Held by:
The National Archives, Kew
Legal status:
Public Record
Physical description:
108 volume(s)
Access conditions:
Immediate source of acquisition:
Ministry of Defence , from 1993
Series is accruing

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