Installation Qualification (IQ)
Installation Qualification (IQ) is a documented verification activity performed to confirm that a system, equipment, or utility has been installed correctly and in accordance with approved design documentation, manufacturer recommendations, and applicable regulatory and quality requirements. IQ is executed after design approval and prior to operational testing and establishes the baseline for subsequent qualification activities.
IQ provides objective evidence that the installed configuration is complete, correct, and suitable to proceed to Operational Qualification (OQ).
Purpose of Installation Qualification
The primary purpose of IQ is to verify that the physical installation of a system conforms to its approved design and supporting documentation. By confirming installation correctness at this stage, IQ reduces downstream risk, prevents invalid testing during OQ and PQ, and ensures that qualification activities are conducted on a properly installed system.
Scope of Installation Qualification
Installation Qualification typically applies to:
- Manufacturing and laboratory equipment
- Utilities and support systems
- Facilities and controlled environments
- Automated and computerized systems
The scope of IQ is defined based on system complexity, criticality, and risk, and includes all components and interfaces necessary for proper system operation.
Key Elements of Installation Qualification
Equipment and System Identification
Verification of system identity, including equipment model numbers, serial numbers, asset tags, locations, and configuration details, to ensure traceability and alignment with approved documentation.
Installation Verification
Confirmation that the system has been installed in accordance with approved drawings, specifications, and manufacturer installation instructions. This includes verification of physical placement, mounting, orientation, and safety considerations.
Utilities and Services Verification
Verification that required utilities and services—such as electrical power, water, gases, compressed air, and network connections—are available, correctly connected, and meet specified requirements.
Environmental Conditions
Verification that installation conditions, including temperature, humidity, space, and environmental controls, are suitable for proper system operation and consistent with design assumptions.
Documentation Review
Review and confirmation of required installation-related documentation, such as manuals, drawings, certificates, calibration records, and as-built documentation.
Calibration and Initial Checks
Verification that required instruments, sensors, and components are calibrated or scheduled for calibration in accordance with applicable standards and site procedures.
Ancillary and Supporting Systems
Confirmation that any ancillary systems required for system operation—such as HVAC, monitoring systems, or support equipment—are available and appropriately qualified or controlled.
Personnel and Training Verification
Confirmation that personnel involved in installation activities were appropriately trained and qualified, where applicable.
Installation Qualification Documentation
Installation Qualification is typically executed using an IQ protocol and documented through an IQ report or combined protocol/report, depending on site practice.
Common IQ documentation elements include:
- Purpose and scope
- System description and configuration details
- Installation verification checklists
- Utilities and environmental verification
- Documentation and calibration review
- Deviations and resolution summary
- Acceptance criteria and conclusions
- Approval signatures
Relationship to Other Qualification Phases
Installation Qualification:
- Follows Design Qualification (DQ)
- Precedes Operational Qualification (OQ)
- Provides the verified baseline for functional and performance testing
IQ does not evaluate system functionality or performance beyond basic installation checks.
Summary
Installation Qualification confirms that a system has been installed correctly and is ready for operational testing. When executed in a structured and risk-based manner, IQ establishes confidence in the installed configuration, supports efficient downstream qualification, and contributes to the maintenance of a controlled and compliant validated state.

