Which of the following is a major benefit of commissioning?

A major benefit of commissioning is the reduction of system deficiencies. Commissioning is a systematic process that ensures all building systems are designed, installed, tested, operated, and maintained according to the owner's requirements. This involves verifying that systems are functioning efficiently and effectively, which helps to identify and rectify any issues before the building is occupied.

As a result, commissioning leads to improved performance and durability of building systems, ultimately enhancing occupant comfort and reducing operational costs. By identifying potential problems early in the project lifecycle, commissioning helps to ensure that systems meet the design specifications and function as intended, thereby avoiding costly repairs and rework after occupancy. This proactive approach is essential in achieving optimal energy performance and indoor environmental quality, which are key objectives of the LEED certification process.