One of the benefits of commissioning is a more compact, more directed, more orderly construction project closeout period. Anyone who has constructed a building lately knows that the 80/20 rule applies well to construction. The first 80% of the construction takes 20% of the effort, while the last 20% of the process takes 80% of the effort. This oversimplifies the issue, but the point I'm interested in making is that it is the end of a project that can be its most painful and protracted part.
Commissioning presents a process and tools for easing the end of construction, but owners have had varying degrees of success in implementing and enforcing these. One of these tools is what we call the "corrective action report" (CAR). This is a form that is used to document deficiencies discovered during the commissioning process and, most often, during the verification or functional performance testing phase of commissioning. We create one form for each deficiency and track the status of each issue in a CAR log.