Early implementations of MAC such as Honeywell's SCOMP, USAF SACDIN, NSA Blacker, and Boeing's MLS LAN focused on MLS to protect military-oriented security classification levels with robust enforcement.
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A few MAC implementations, such as Unisys' Blacker project, were certified robust enough to separate Top Secret from Unclassified late in the last millennium.
Centers for Disease Control and Prevention | Transmission Control Protocol | Public-access television | Centers for Disease Control | Access Hollywood | air traffic control | Access Industries | gun control | Controlled-access highway | Media Control Charts | Internet Message Access Protocol | NFL Total Access | Mandatory Palestine | Lightweight Directory Access Protocol | Control Data Corporation | Board of Control for Cricket in India | The Olivia Tremor Control | Public, educational, and government access | open access | Microsoft Access | Christopher C. Kraft Jr. Mission Control Center | British Boxing Board of Control | Access | Gun Control Act of 1968 | Control Machete | biological pest control | Airborne early warning and control | Time division multiple access | Space-division multiple access | Random-access memory |