CCI-001320

Defines the maximum fraction or percentage of mean time to failure (MTTF) used to determine when system components are taken out of service by transferring component responsibilities to substitute components.

Implementation Guidance

The organization being inspected/assessed defines and documents the maximum fraction or percentage of mean time to failure used to determine when information system components are taken out of service by transferring component responsibilities to substitute components. DoD has determined the fraction or percentage is not appropriate to define at the Enterprise level.

Validation Procedures

The organization conducting the inspection/assessment obtains and examines the documented fraction or percentage to ensure the organization being inspected/assessed defines the maximum fraction or percentage of mean time to failure used to determine when information system components are taken out of service by transferring component responsibilities to substitute components. DoD has determined the fraction or percentage is not appropriate to define at the Enterprise level.

Compelling Evidence

1.) Produce signed and dated System security plan defines the maximum fraction or percentage of mean time to failure used to determine when information system components are taken out of service by transferring component responsibilities to substitute components.

The controls below (if any) were marked by NIST as being related to CCI-001320.