The space used for generating, storing, repairing, or using COMSEC material. The COMSEC material may be in either physical or electronic form. Unless otherwise noted, the term "COMSEC facility" refers to all types of COMSEC facilities, including telecommunications facilities, and includes platforms such as ships, aircraft, and vehicles.
Sources:
CNSSI 4009-2015
from
CNSSI 4005