Body of Knowledge

A comprehensive, practitioner-built foundation for Commissioning, Operational Readiness, and Outcome Assurance

The ICxA Body of Knowledge (BoK) represents the Institute’s community-informed and practice-grounded knowledge release.

Built through structured industry research and global practitioner collaboration, the Body of Knowledge is shaped by input from commissioning and assurance leaders across sectors, project types, and regions.

What is the ICxA Body of Knowledge

The ICxA BoK connects the why, what, and how of Commissioning, Operational Readiness, and Outcome Assurance – linking intent to outcomes and providing a shared foundation for consistent delivery, professional credibility, and measurable outcomes.

The ICxA BoK includes:

• Foundational principles that guide effective assurance behavior and decision-making
• Core practice domains that define the essential areas of capability across the project lifecycle
• Practical guidance and tools to support implementation in real project environments
• Outcome-focused assurance concepts that emphasize value delivery, accountability, and performance verification
• Adaptable pathways that respect different project delivery models, contracting strategies, and maturity levels—without being rigid or one-size-fits-all

Built for modern capital project delivery

The BoK supports professionals working across a range of environments – public and private, brownfield and greenfield, traditional and progressive delivery models.

Whether you are leading commissioning on complex facilities, supporting owner readiness, managing assurance across a portfolio, or integrating quality and performance verification into delivery, access to the ICxA BoK will provide clarity, consistency, and confidence.