# SC-4(2) — Multilevel or Periods Processing

- **Control ID:** SC-4(2)
- **Family:** [SC](/md/families/SC.md)
- **Baselines:** No content available.
- **Enhancement of:** [SC-4](/md/controls/SC-4.md)

## Description

Prevent unauthorized information transfer via shared resources in accordance with \[assignment\] when system processing explicitly switches between different information classification levels or security categories.

## Discussion

Changes in processing levels can occur during multilevel or periods processing with information at different classification levels or security categories. It can also occur during serial reuse of hardware components at different classification levels. Organization-defined procedures can include approved sanitization processes for electronically stored information.

## Implementation guidance

No content available.

## CSF 2.0 subcategories

No content available.

## Related controls

No content available.

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Derived from official NIST publications (NIST SP 800-53 Rev 5 and NIST CSF 2.0). nistcontrols.com is not affiliated with NIST.