What does 4.3.5 require?

Different parts of an organisation can apply different data protection policies to information at the same confidentiality category: sales staff need no access to proprietary source code and schematics, engineers no access to customer PII, and each set carries different internal and external rules on necessary controls. The data protection level therefore complements the question of organisational control, and both are considered when identifying whether sanitization is necessary.

NIST SP 800-88 Rev 2 4.3.5: Consider the data protection...

Other controls in Section 4: the media sanitization programme (policy, scope, decision framework, performance, assurance, documentation, roles) – NIST SP 800-88 Rev 2

4 Make storage sanitization part of data governance with, at minimum, disposal policies and minimum methods, scope and decision criteria, performance of sanitization, adequacy determination and the records needed for compliance
4.1 Storage sanitization policy: align data classification with minimum methods; set disposal and reuse requirements, expected outcomes and acceptable techniques, documentation, roles and competencies, tool calibration and maintenance, and the vendor assurances required
4.2 Scope: unclassified federal ISM never holding FOUO, Privacy Act or PII need no sanitization; otherwise target all user data, treat selective and partial sanitization as risky, and prefer whole-ISM sanitization while allowing partial CE where justified
4.3 Decision framework: identify the confidentiality level under FIPS 199 and SP 800-60, accept clear for moderate data only as a conscious risk decision, weigh purge or clear against destroy for lease returns, environment, reuse, cost and feasibility, and decide on confidentiality rather than media type
4.3.1 Plan sanitization from the system security plan onward: choose ISM with sanitization in mind, obtain Statements of Volatility and the Appendix B characteristics, identify every ISM inside each item, combine techniques such as CE before shipment, and dispose without sanitization only where disclosure would cause no harm
4.3.2 Security categorisation set early under FIPS 199, SP 800-60 or CNSSI 1253, revisited at least every three years or on significant change, and internal confidentiality labels assigned to uncategorised information such as hard copy
4.3.3-4.3.4 Decide on reuse (destroy is simplest when media will not be reused) and account for who controls the media: maintenance under contract or on-site supervision stays under organisational control, warranty exchanges and other non-returned media do not, and legal rules may treat loss of unsanitized media as a breach
4.3.6 Make and record the risk-based sanitization decision, then put the process, resources, verification steps and interfaces with key officials in place to carry it out

Query this from an agent

The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.

MCP endpoint All NIST SP 800-88 Rev 2 controls