CLASSIFICATION OF SONAR SECTION OF CHAPTER III OF JANIS REPORTS.

• Document Type: CREST
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): CIA-RDP79-01147A000400030049-9
• Release Decision: RIPPUB
• Original Classification: C
• Document Page Count: 2
• Document Creation Date: December 15, 2016
• Document Release Date: October 24, 2002
• Sequence Number: 49
• Publication Date: October 11, 1945
• Content Type: MEMO

Approved For Release 2002/11/15 : Cl
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11 October 1945
MEMORANDUM forLt. A. P. Hilar
Electronic Division (Op-25-A3)
Office of the Chief of Naval Operation
Room 4722, Navy Department
Subject: Classification of Sonar Section of Chapter III of
JANIS reports.
.Enclosure: (A) Chapter III of JANIS 76, 77, 81,'84, 85, 87,
102, 103, 104, 153, 154, 155, 157.
1. With reference to your telephone converettion with Lt.
Sears in this office, Enclosure (A) is forwarded herewith to enable
you to examine the contents of the sonar section with a view to
ascertaining whether or not it is permissible to declassify the
oceanographic chapter of the JANIS reports to restricted. A
considerable number, but not all repots, are submitted, (Enclosure (A))
as the material on sonar has changed markedly in its presentation as
the war progressed. For example, reports still in press contain figures
adapted from the Submarine Supplements to the Sailing Directions; these
have not been included previously. It should be also noted that the
bibliographies contain many titles of sonar material still classified
as confidential.
ti
2. The oceanography chapter of the JANIS reports have
been prepared in this office, but the responsibility for their preparation
comes under the cognizance of the Director of Naval Intelligence.
3. It is understood inforiual3y that 'the Director, of Naval
Intelligence has given permission for declassification from confidential
to restricted for most of the chapters for which they are responsible,
including the chapter on oceanography. In some cases, the permission
was given some time ago; those reports prepared prior to June 1944
have been declassified for some time.
ONI review(s)
completed.
25X1
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 Approved Fdr.Jklease 2002/11/15: CIA-RDP7 r014A,Z4000400030049-9
11 October 1945
Subject:
Classification of Sm&r Section of Chapter III of
3ANT5. reports.
4. It is further understood ,that the declassification was
to permit the distribution to repository libraries where 'they might be
consulted by scientist,* and scholars. Ihies action see highly desirable
in view of the research that has gone into the preparation of the reports.
5. Despite the desirability of carrying out the distribution
outlined in Paragraph 4, it has boon called to our attention that sonar
information has not yet been declassified and way not be in the im diats
future.
of the action outlined in Paragraph 3
- y be difficult, if not 'impossible, to recall and reclassify all
copies of oceanographic chapters already deal saified.
Asa
In this connection, it should be borne in mind that
onar charts - were not classified as ccafidential until the winter
sharts of th third edition were printed :..d hence consideiable sonar i formation is already widely distributed.
W. G. ' Afl
By direction of the
Hydrographer.
Approved For Release 2062/11/15 : CIA-RDP79-01147A000400030049-9