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Dear Mr. Haire,
Thank you for posting your request on History Hub!
We searched the Records of the Bureau of Medicine and Surgery (Record Group 52) and located a series titled General Office Files, 1968 - 1982 that contains files about diving and medical issues. For access to or copies of these files, please contact the National Archives at College Park - Textual Reference (RDT2) via email at firstname.lastname@example.org.
For information specifically about the unit, we suggest that you contact the Operational Archives Branch, Naval History & Heritage Command, 805 Kidder Breese Street, SE, Washington Navy Yard, Washington, DC 20374-5060. The web site is https://www.history.navy.mil/.
We hope this information is helpful. Best of luck with your research!