Commissioning is performed by a third party independent company that records and documents specifications related to a project. As a member of the AABC Commissiong Group, TAB services helps to plan, organize and facilitate the commissioning process for the owner of a certain project. Functional Performance Testing (FPT) of equipment and systems is at the heart of the commissioning process. Equipment operation during the tests is performed by the appropriate contractor or equipment manufacturer, but the responsibility for directing, witnessing, and documenting the tests rests with the commissioning authority.