Performance tests are required for many of the complicated systems that are installed in the building. A few of these systems include the fire alarm system, elevators, and water chillers/air – handlers. These types of tests are performed by the installer of the system and are only witnessed and verified by QC personnel. Once again, it is important for QC personnel to have some knowledge of what is involved with testing these systems. The project specifications will state industry standards, which must be followed for proper testing.