Nuclear Security Regulations

11 Every protected area shall be

• (a) equipped with devices that

  • (i) employ two independent systems that detect intrusion into the protected area,

  • (ii) detect any tampering that may cause any of the devices referred to in subparagraph (i) or (iv) to malfunction or cease to function,

  • (iii) when an event referred to in subparagraph (i) or (ii) is detected, set off a continuous alarm signal that is both audible and visible in a security monitoring room and that can be stopped only by a nuclear security officer, and

  • (iv) facilitate an immediate assessment of the cause of the alarm; or

• (b) kept under the direct visual surveillance of a nuclear security officer who is equipped with a device that can set off a continuous alarm signal that

  • (i) is both audible and visible in a security monitoring room, and

  • (ii) can be stopped only by a nuclear security officer from the security monitoring room.