olemus
kinnise teabe kitsendustase
kontekstist sõltuvas tähenduses
=
an information security designation used by some governments
(a designation, not classification)

ülevaateid
https://en.wikipedia.org/wiki/For_Official_Use_Only

https://webarchive.library.unt.edu/eot2008/20090117192531/http://www.ioss.gov/WhatDoesFOUOMean.html

https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/Customer%20Outreach/Subscriptions/J6_ForOfficialUseOnly_160113.pdf

vt ka
- turvamääranguta