National Emissions Policies and Procedures
Physical and Environmental Protection
NIST Control Text
Protect system components, associated data communications, and networks in accordance with national Emissions Security policies and procedures based on the security category or classification of the information.
NIST Discussion
Emissions Security (EMSEC) policies include the former TEMPEST policies.
SL5 Supplemental Guidance
Red Zones implement TEMPEST countermeasures per TEMPEST/1-92: RF shielding and dedicated power conditioning that prevent electromagnetic signal egress and power-line analysis, and that resist adversary-controlled active signals, including inbound signal injection used to influence system behavior. Emissions policies define the permitted energy flows across each Red Zone boundary in both directions [9], [21]. See Section 2 (ICD 705 Facility Requirements) for construction details.