A Commissioning Agent (CxA) has a technical background and in-depth expertise with the commissioning process including verification techniques, functional performance testing, system equipment and O&M knowledge. The role of the Support Mechanical Commissioning Agent (CxA) is to act as a third-party authority systematically verifying that mechanical systems are functioning in accordance with the design intent and Owner's Project Requirements (OPR). Some of the actions of the Commissioning Agent will include verification and testing during all 5 levels of commissioning, as per ASHRAE Guideline 0. You are expected to work onsite every day that testing, or inspections are scheduled.