As of 03/10/25, the 2nd Edition of the ACG Guideline (blue and orange cover) is *only* used as study material for ACG’s Certified Commissioning Technician (CxT) certification exam.
For CxA certification candidates, it has now been superseded by the ACG Building Systems Commissioning Guideline: Best Practices for Independent Third-Party Commissioning Providers! (Specifically, Part 1: Understanding the Comprehensive Building Systems Commissioning Process.)  Click here to be taken to the new Guideline page.
Commissioning Guideline, 2nd, Ed.
The Guideline, 2nd Ed. provides a comprehensive description of the commissioning process and includes sample forms, specifications, checklists and other commissioning documentation.
ACG Commissioning Guideline (pdf)
Appendix A Sample Request for Proposal for Commissioning Services (pdf)
Appendix B Sample Specification (Contractor Responsibilities)Â (pdf)
Appendix C Sample Format for System Verification and Start-Up Checklists (Word doc)
Appendix D Sample Checklists for Functional Performance Tests (Word doc)