Tier 2 connects systems to mission and business-process consequences.{{{split}}} The application exists at Tier 3, but the operational consequence of losing it is primarily a Tier 2 judgment.

Tailoring adapts an initial control baseline to the system’s technologies, environment, mission, threats, and organizational requirements.{{{split}}} Selecting a baseline is only the starting point. Documented additions, removals, parameter choices, and refinements are part of tailoring.

The team documents the inheritance, verifies correct integration, and addresses any system-specific portions not covered by the shared service.{{{split}}} Inherited does not mean ignored. The common-control provider supports the shared control, while the application team proves correct use and handles gaps.

The organization should assess the change’s security impact, restore or mitigate the control, update risk information, and escalate for a new risk decision when warranted.{{{split}}} Continuous monitoring turns operational evidence into action; recording the change without evaluating and responding to its risk is insufficient.

Prepare, Categorize, Select, Implement, Assess, Authorize, Monitor.{{{split}}} Follow the lifecycle dependencies: prepare first, determine impact before selecting controls, implement before assessing, and assess before authorization.

The core authorization package commonly includes the system security plan, security assessment report, and plan of action and milestones.{{{split}}} The decision requires a description of the system and controls, independent assessment results, and the plan for unresolved weaknesses.

Tier 3 addresses the security and privacy risk of a particular information system and its implemented controls.{{{split}}} Technical configuration for a specific application is primarily Tier 3 work.

The assessor provides an objective evaluation of whether controls are implemented correctly, operating as intended, and meeting security requirements.{{{split}}} The assessor supplies findings and evidence. The assessor does not own the system or accept its residual risk.

The high-water-mark rule makes the system impact level High because at least one security objective is High.{{{split}}} Use the highest of confidentiality, integrity, and availability. Low, Moderate, High results in an overall High categorization.

The Authorizing Official makes the accountable risk decision using the authorization package and mission context.{{{split}}} Assessors report findings and system personnel propose mitigations; the Authorizing Official accepts or rejects residual risk for the organization.

The system owner is accountable for the system throughout its lifecycle and coordinates the resources and documentation needed for RMF.{{{split}}} The Authorizing Official makes the risk decision; the control assessor evaluates controls. Lifecycle accountability belongs primarily to the system owner.

Tier 1 is the organization level, where enterprise policy, governance, resources, and risk tolerance are established.{{{split}}} Organization-wide direction originates at Tier 1; lower tiers apply it to missions and systems.

The logging mechanism is implemented, but the broader control may be ineffective because timely review and detection are not occurring.{{{split}}} Generating logs is evidence of implementation, not proof that the intended detection outcome is being achieved.

Assess follows Implement so an assessor can determine whether the controls are correctly implemented, operating as intended, and producing the desired outcome.{{{split}}} Configured controls must be assessed before the authorization risk decision.

RMF is cyclical. Significant changes can require revisiting categorization, control selection, assessment, or authorization rather than merely recording the event.{{{split}}} Monitor is not an endpoint. New risk information can send the system back through earlier RMF steps.

Strong evidence connects the requirement to documented procedures, actual configuration, operating records, responsible roles, and repeatable execution.{{{split}}} A policy statement or administrator assurance alone does not demonstrate that the control is implemented and operating.

The team documents the deficiency, risk, planned remediation, resources, milestones, and schedule—typically in a POA&M—for consideration in the authorization decision.{{{split}}} A finding must be communicated and managed. It does not automatically disappear, and the assessor does not unilaterally authorize or deny the system.

The team first identifies the information types processed, stored, or transmitted and considers the harm that loss of each security objective could cause.{{{split}}} Categorization begins with information types and potential impact, not with a preferred control baseline or a scan result.

Select comes after Categorize; the categorization helps determine the initial control baseline.{{{split}}} The sequence begins Prepare, Categorize, Select. Controls are selected before they can be implemented or assessed.

A sampled chain from separation notice through ticket timestamps, account status, and audit records shows that the process operated within the required timeframe.{{{split}}} Written policy is necessary but operating evidence shows whether actual departures triggered timely account disablement.