AP3.2.4. Protection of FOUO Information
AP126.96.36.199. During working hours, reasonable steps should be
taken to minimize risk of access by unauthorized personnel. After working
hours, FOUO information shall be stored in unlocked containers, desks or
cabinets if Government or Government-contract building security is provided,
or in locked desks, file cabinets, bookcases, locked rooms, or similar
AP188.8.131.52. FOUO documents and material may be transmitted via
first-class mail, parcel post or -- for bulk shipments -- fourth-class mail.
Electronic transmission of FOUO information (voice, data or facsimile)
should be by approved secure communications systems whenever practical.