Category: Continuous Monitoring

Deviation Request

Also known as: Deviation

Simply put

A deviation request is a formal, written request to depart from a documented procedure, design, or standard requirement, usually on a temporary basis. It is submitted for review and must be approved by a designated authority before the departure is allowed. The specific process and approving body vary by organization and by the governing standard involved.

Formal definition

A deviation request is a documented submission seeking authorization to depart from an established procedure, design specification, or documented requirement, typically as an unplanned and temporary measure. In configuration and change management contexts, such requests are generally reviewed and dispositioned by a designated authority such as a change control board (CCB) before the deviation is implemented. Submission mechanisms commonly involve a controlled form that must be completed and, in some processes, digitally signed by the requesting party. The evidence available describes deviation request concepts across differing domains (for example, manufacturing change control and administrative form-based processes) and does not establish a single defense- or CUI-specific control definition; readers should verify the applicable process, approving authority, and documentation requirements against the current authoritative text governing their program.

Why it matters

In configuration and change management, the integrity of an approved baseline depends on ensuring that no departure from a documented procedure, design, or requirement occurs without formal review and authorization. A deviation request is the control mechanism that preserves this discipline: it forces an intended departure to be documented, evaluated by a designated authority, and dispositioned before it is implemented, rather than allowed to happen informally or undocumented. Without such a process, an organization loses assurance that its systems and products actually conform to the requirements it claims to meet, which undermines both accountability and traceability.

Because deviations are generally unplanned and temporary, they carry particular risk if they are not tracked to closure. A departure intended as a short-term measure can quietly become a permanent, undocumented condition if there is no controlling authority monitoring it. Formalizing the request and its approval creates the record needed to demonstrate that the departure was authorized, bounded, and understood, and that responsibility for the decision rested with an appropriate reviewing body rather than an individual acting alone.

The concept appears across markedly different domains, and readers should not assume the term carries a uniform meaning. The evidence describes deviation requests in manufacturing change control, in administrative form-based processes, and in unrelated contexts. The specific process, approving body, and documentation requirements vary by organization and by the governing standard, so practitioners should confirm the applicable definition and authority against the current authoritative text governing their own program rather than transferring a definition from another domain.

Who it's relevant to

Configuration and Change Managers

Personnel responsible for maintaining an approved baseline rely on the deviation request process to ensure any departure from a documented procedure or design is reviewed and authorized before implementation. They are typically responsible for routing requests to the appropriate authority and confirming that temporary deviations are tracked rather than left to become undocumented permanent conditions.

Change Control Board Members

Members of a change control board (CCB) or equivalent designated authority are the parties who review and disposition deviation requests. They evaluate whether a proposed departure is acceptable, scope its bounds, and record the approval decision, providing the accountable review that distinguishes an authorized deviation from an uncontrolled one.

Requesters and Requesting Organizations

Individuals or organizations seeking to depart from an established requirement must prepare and submit the deviation request, often on a controlled and, in some processes, digitally signed form using the most-recent version. They should confirm the correct submission mechanism and documentation requirements for their specific program before submitting.

Auditors and Compliance Reviewers

Those assessing conformance depend on documented deviation requests and their dispositions as evidence that departures from documented requirements were formally authorized. Because the applicable process and approving authority vary by organization and governing standard, reviewers should verify the specific deviation procedure against the authoritative text governing the program under examination.

Inside Deviation Request

Requested Deviation Description

A clear statement of the specific requirement, control, or configuration standard the requestor seeks to deviate from, identifying the applicable baseline or policy source so reviewers understand exactly what is being modified or not fully met.

Justification or Rationale

The operational, technical, or mission-driven reasoning explaining why the deviation is being requested, including why full compliance is impractical, infeasible, or unnecessary in the specific context. This generally supports the risk-based decision by the authorizing authority.

Risk Assessment and Impact Analysis

An evaluation of the security implications of granting the deviation, describing residual risk and any effect on the confidentiality, integrity, or availability of the system or the information it processes. Note that the depth of analysis expected often depends on system categorization and agency-specific practice.

Compensating or Mitigating Measures

A description of alternative controls or safeguards proposed to offset the risk introduced by the deviation, intended to demonstrate that residual risk can be brought to an acceptable level for the responsible official.

Scope and Duration

The systems, components, or environments to which the deviation applies and, in most implementations, a defined time period or conditions under which the deviation remains valid, since deviations are generally not intended to be permanent.

Approval and Disposition Record

The documented decision by the responsible authority (such as an authorizing official or a designated approver) to grant, deny, or conditionally approve the request, along with signatures or equivalent attestation and any conditions imposed. The specific approval authority varies by program and agency.

Common questions

Answers to the questions practitioners most commonly ask about Deviation Request.

Does an approved deviation request permanently exempt a system from the affected requirement?

No. A deviation request generally results in a time-bound or condition-bound acceptance rather than a permanent exemption. Approvals are typically tied to a specific system state, compliance milestone, or review period, and they are subject to reassessment during continuous monitoring or at reauthorization. Treating an approved deviation as a permanent waiver is a common mistake; the reader should confirm the specific duration and conditions against the approving authority's documented decision.

Is submitting a deviation request the same as achieving compliance with the underlying control?

No. A deviation request documents that a requirement is not being met as specified and seeks acknowledgment or acceptance of that gap, which is not the same as satisfying the control or eliminating the associated risk. Compliance and security are distinct from having a deviation on record; a documented deviation acknowledges residual risk rather than resolving it. Confirm how the responsible authority characterizes the outcome in the applicable process.

Who typically has the authority to approve a deviation request?

Approval authority generally rests with the official accountable for accepting the associated risk, which varies by program and system type and may differ across federal civilian, defense, and contractual contexts. Because roles and delegation practices are defined by agency- or program-specific policy, identify the responsible approving official for your environment and verify their authority against the governing process documentation rather than assuming a universal approver.

What information should a deviation request generally include?

In most implementations, a deviation request identifies the specific requirement or control at issue, the nature and scope of the deviation, the justification, the associated risk, any compensating or mitigating measures, and a proposed duration or remediation timeline. Exact required fields and formats are defined by the applicable process, so confirm the mandated content and template against your program's current authoritative guidance.

How does a deviation request relate to continuous monitoring after approval?

An approved deviation generally remains subject to ongoing review as part of continuous monitoring, because the underlying conditions, risk posture, or requirements may change over time. Programs typically track open deviations so they can be revisited at defined intervals or when circumstances change. Verify the specific monitoring, review cadence, and closure expectations that apply within your process.

What should happen when the conditions supporting an approved deviation change?

When the system state, risk, mitigating measures, or applicable requirements change, the deviation generally needs to be re-evaluated, updated, or resubmitted so the accepted risk continues to reflect current reality. The precise trigger points and procedures for revisiting a deviation are set by the governing process, so confirm the update and reauthorization steps against your program's current authoritative sources.

Common misconceptions

An approved deviation permanently exempts the system from the requirement.

Deviations are generally time-bound or condition-bound and subject to periodic review. They typically remain valid only for a defined scope and period, and continuous monitoring or reassessment may revisit the underlying risk. Practitioners should confirm the duration and review terms against the governing policy rather than assuming permanence.

A deviation request and its documented risk acceptance are the same as being compliant or secure.

Documenting and approving a deviation acknowledges and manages residual risk; it does not eliminate the risk or mean the requirement is satisfied. Compliance and security are distinct, and an accepted deviation records that a gap exists but has been formally reviewed and authorized.

Any team member can grant a deviation once the rationale is written down.

Granting a deviation generally requires a designated responsible official with the authority to accept risk on behalf of the organization, such as an authorizing official. The approval authority, required documentation, and process vary by program and agency, so requestors should verify who holds that authority under the applicable policy.

Best practices

Tie each deviation request to the specific requirement, control, or baseline source it addresses so reviewers can trace exactly what is being modified and against which governing document.

Include a documented risk assessment and clearly described compensating or mitigating measures so the responsible authority can make an informed, risk-based decision.

Define an explicit scope and expiration or review date rather than treating the deviation as open-ended, and schedule reassessment as part of continuous monitoring.

Route the request to the appropriate approval authority for your program or agency and retain the signed disposition record, confirming who holds risk-acceptance authority before submission.

Track approved deviations in a central register alongside their conditions and review dates so residual risks remain visible and are not lost between assessment cycles.

Verify the current deviation process, required content, and approval workflow against your organization's applicable policy and authoritative sources, since these vary by agency and revision.