Document: 10 CFR Part 73
Document ID: 6757cf8e-fe9e-4d06-8f00-167622eb50bd
Document Type: cfr
Title: Fixed site physical protection systems, subsystems, components, and procedures.
Source: 10 CFR Part 73
Source URL: https://www.ecfr.gov/current/title-10/part-73/section-73.46
Revision Date: 
Chapter: 
Section ID: 73.46
CFR Part: 73
CFR Title: 10

Content:
alarm station shall be located within a building so that the interior of the central alarm station is not visible from the perimeter of the protected area. This station may not contain any operational activities that would interfere with the execution of the alarm response function. ( 6 ) All alarms required by this section shall remain operable from independent power sources in the event of the loss of normal power. Switchover to standby power shall be automatic and shall not cause false alarms on annunciator modules. ( 7 ) All alarm devices including transmission lines to annunciators shall be tamper indicating and self-checking e.g., an automatic indication shall be provided when a failure of the alarm system or a component occurs, when there is an attempt to compromise the system, or when the system is on standby power. The annunciation of an alarm at the alarm stations shall indicate the type of alarm (e.g., intrusion alarm, emergency exit alarm, etc.) and location. The status of all alarms and alarm zones shall be indicated in the alarm stations. ( 8 ) All exterior areas within the protected area shall be monitored or periodically checked to detect the presence of unauthorized persons, vehicles, materials, or unauthorized activities. ( 9 ) Methods to observe individuals within material access areas to assure that strategic special nuclear material is not moved to unauthorized locations or in an unauthorized manner shall be provided and used on a continuing basis. ( f ) Communication subsystems. ( 1 ) Each guard, watchman, or armed response individual on duty shall be capable of maintaining continuous communication with an individual in each continuously manned alarm station required by paragraph (e)(5) of this section, who shall be capable of calling for assistance from other guards, watchmen, and armed response personnel and from law enforcement authorities. ( 2 ) Each alarm station required by paragraph (e)(5) of this section shall have both conventional