Which item distinguishes LEED EA Credit 3 Enhanced Commissioning from Prereq 1?

• A. Must review the OPR and DID
• B. Must review the OPR, BOD, and design by mid-CDs
• C. Must create the systems manual
• D. Must perform the 10th month review of building operation

Answer: (B)

Enhanced Commissioning adds proactive, design-phase validation to the basic commissioning process. The key requirement is that the owner’s project requirements (OPR), the basis of design (BOD), and the actual design documents are reviewed by the commissioning authority during the design phases—typically by the midpoint of the design documents. This early, rigorous review ensures the design decisions are truly aligned with the owner’s goals and that the commissioning plan can verify performance as the project progresses. That early design-stage oversight is what sets Enhanced Commissioning apart from the basic prerequisite, which focuses more on later verification and testing rather than an early, formal cross-check of OPR, BOD, and design intent. The other items touch on post-occupancy or ancillary tasks, but they don’t capture the distinctive early-design verification requirement.