PL-11 — Baseline Tailoring | Bare Metal Cyber

Official NIST control content

Control statement

Tailor the selected control baseline by applying specified tailoring actions.

Official NIST discussion

Discussion

The concept of tailoring allows organizations to specialize or customize a set of baseline controls by applying a defined set of tailoring actions. Tailoring actions facilitate such specialization and customization by allowing organizations to develop security and privacy plans that reflect their specific mission and business functions, the environments where their systems operate, the threats and vulnerabilities that can affect their systems, and any other conditions or situations that can impact their mission or business success. Tailoring guidance is provided in [SP 800-53B](#46d9e201-840e-440e-987c-2c773333c752) . Tailoring a control baseline is accomplished by identifying and designating common controls, applying scoping considerations, selecting compensating controls, assigning values to control parameters, supplementing the control baseline with additional controls as needed, and providing information for control implementation. The general tailoring actions in [SP 800-53B](#46d9e201-840e-440e-987c-2c773333c752) can be supplemented with additional actions based on the needs of organizations. Tailoring actions can be applied to the baselines in [SP 800-53B](#46d9e201-840e-440e-987c-2c773333c752) in accordance with the security and privacy requirements from [FISMA](#0c67b2a9-bede-43d2-b86d-5f35b8be36e9), [PRIVACT](#18e71fec-c6fd-475a-925a-5d8495cf8455) , and [OMB A-130](#27847491-5ce1-4f6a-a1e4-9e483782f0ef) . Alternatively, other communities of interest adopting different control baselines can apply the tailoring actions in [SP 800-53B](#46d9e201-840e-440e-987c-2c773333c752) to specialize or customize the controls that represent the specific needs and concerns of those entities.

Original Bare Metal Cyber perspective

From control text to operational evidence

Use Baseline Tailoring as a testable risk decision. Translate the official statement into accountable people, repeatable processes, configured technology, and evidence that demonstrates the outcome over time. In this family, pay particular attention to security and privacy planning, architecture, rules of behavior, and lifecycle alignment.

Implementation workflow

Define the control boundary, responsible owner, inherited portions, and systems or processes in scope.
Resolve each organization-defined parameter before declaring the control implemented.
Document how the implementation satisfies every clause of the official control statement.
Collect evidence as a normal byproduct of operation rather than only before an assessment.
Review exceptions, changes, and monitoring results on a risk-based cadence.

Evidence examples

system security and privacy plans
architecture and data-flow diagrams
rules-of-behavior acknowledgments
plan review and approval records

Common failure patterns

plans copied from templates without system specificity
diagrams that do not match deployed services
inherited controls claimed without provider evidence
plans updated only before assessment

Questions practitioners should ask

What risk decision is this control intended to support in this system?
Which parts are implemented locally, inherited, shared, or not applicable—and what evidence supports that decision?
Do the documented narrative, deployed configuration, operating process, and collected evidence agree?
What event or threshold requires the implementation to be reviewed or changed?

Official NIST SP 800-53A content

Assessment objectives and methods

Show the assessment objective

the selected control baseline is tailored by applying specified tailoring actions.

Examine

Security and privacy planning policy
procedures addressing system security and privacy plan development and implementation
system design documentation
system categorization decision
information types stored, transmitted, and processed by the system
system element/component information
stakeholder needs analysis
list of security and privacy requirements allocated to the system, system elements, and environment of operation
list of contractual requirements allocated to external providers of the system or system element
business impact analysis or criticality analysis
risk assessments
risk management strategy
organizational security and privacy policy
federal or organization-approved or mandated baselines or overlays
baseline tailoring rationale
system security plan
privacy plan
records of system security and privacy plan reviews and updates
other relevant documents or records

Interview

Organizational personnel with security and privacy planning and plan implementation responsibilities
organizational personnel with information security and privacy responsibilities

Official relationships

Related controls

These relationships come from the official OSCAL catalog. They indicate useful dependencies or context, not automatic inheritance or equivalence.

Source record

Authoritative sources

Bare Metal Cyber is an independent educational publisher and is not affiliated with or endorsed by NIST. Official control requirements and interpretations remain with NIST and the responsible authorizing organization.