What best differentiates commissioning from verification in BCxP practice?

• A. Commissioning is the process of ensuring systems operate as intended; verification is the collection of evidence and documentation showing that it occurred.
• B. Commissioning is only initial startup; verification is ongoing adjustment.
• C. Commissioning and verification are identical.
• D. Commissioning is documentation; verification is testing.

Answer: (B)

The main idea is that commissioning is the broad, structured process to make sure building systems ultimately meet the owner’s requirements and function as intended, from planning through turnover and initial operation. Verification, on the other hand, is the collection of objective evidence—test results, checklists, measurements, and documentation—that demonstrates those commissioning activities were carried out and that the systems meet the specified criteria.

So, commissioning covers the activities, planning, testing, tuning, training, and acceptance steps to achieve the desired performance. Verification is about documenting and proving, with records and evidence, that the outcomes were achieved. This makes verification a means to validate the success of the commissioning process, not the process itself.