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GAO Green Book

​​​​​​Standards for Internal Control in the Federal Government

United States Government Accountability Office

Control Environment

Demonstrate Commitment to Integrity and Ethical Values

The oversight body and management should demonstrate a commitment to integrity and ethical values
Tone at the Top
Standards of Conduct
Adherence to Standards of Conduct

Exercise Oversight Responsibility

The oversight body should oversee the entity’s internal control system
Oversight Structure
Oversight for the Internal Control System
Input for Remediation of Deficiencies

Establish Structure, Authority, and Responsibility

Management should establish an organizational structure, assign responsibility, and delegate authority to achieve the entity’s objectives.
Organizational Structure
Assignment of Responsibility and Delegation of Authority
Documentation of the Internal Control System

Demonstrate Commitment to Competence

Management should demonstrate a commitment to recruit, develop, and retain competent individuals
Expectations of Competence
Recruitment, Development, and Retention of Individuals
Succession and Contingency Plans and Preparation

Enforce Accountability

Management should evaluate performance and hold individuals accountable for their internal control responsibilities.
Enforcement of Accountability
Consideration of Excessive Pressures

Risk Assessment

Define Objectives and Risk Tolerances

Management should define objectives clearly to enable the identification of risks and define risk tolerances.
Definitions of Objectives
Definitions of Risk Tolerances

Identify, Analyze, and Respond to Risks

Management should identify, analyze, and respond to risks related to achieving the defined objectives.
Identification of Risks
Analysis of Risks
Response to Risks

Assesses Fraud Risk

Management should consider the potential for fraud when identifying, analyzing, and responding to risks.
Types of Fraud
Fraud Risk Factors
Response to Fraud Risks

Identify, Analyze, and Respond to Change

Management should identify, analyze, and respond to significant changes that could impact the internal control system.
Identification of Change
Analysis of and Response to Change

Control Activities

Design Control Activities

Management should design control activities to achieve objectives and respond to risks.
Response to Objectives and Risks
Design of Appropriate Types of Control Activities
Design of Control Activities at Various Levels
Segregation of Duties

Design Activities for the Information System

Management should design the entity’s information system and related control activities to achieve objectives and respond to risks.
Design of the Entity’s Information System
Design of Appropriate Types of Control Activities
Design of Information Technology Infrastructure
Design of Security Management
Design of Information Technology Acquisition, Development, and Maintenance

Implement Control Activities

Management should implement control activities through policies.
Documentation of Responsibilities through Policies
Periodic Review of Control Activities

Information and Communication

Use Quality Information

Management should use quality information to achieve the entity’s objectives.
Identifies Information Requirements
Relevant Data from Reliable Sources
Data Processed into Quality Information

Communicate Internally

Management should internally communicate the necessary quality information to achieve the entity’s objectives.
Communication throughout the Entity
Appropriate Methods of Communication

Communicate Externally

Management should externally communicate the necessary quality information to achieve the entity’s objectives.
Communication with External Parties
Appropriate Methods of Communication

Monitoring

Perform Monitoring Activities

Management should establish and operate monitoring activities to monitor the internal control system and evaluate the results.
Establishment of a Baseline
Internal Control System Monitoring
Evaluation of Results

Evaluate Issues and Remediate Deficiencies

Management should remediate identified internal control deficiencies on a timely basis.
Reporting of Issues
Evaluation of Issues
Corrective Actions
Standards for Internal Control in the Federal Government (known as the Green Book), provide the overall framework for establishing and maintaining an effective internal control system. (...) The Committee of Sponsoring Organizations of the Treadway Commission (COSO) updated its internal control guidance in 2013 with the issuance of a revised Internal Control - Integrated Framework. COSO introduced the concept of principles related to the five components of internal control. The Green Book adapts these principles for a government environment.

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