Commissioning and Validation services provide documented evidence that critical building systems are not only installed correctly, but operate as intended in the design documents and owner requirements. When properly completed, commissioning optimizes energy efficiency and reduces operating costs by avoiding post occupancy troubleshooting. Integrated Commissioning considers building system interactions and applies the best ideas of FDA Validation, but in a less rigorous, more straightforward manner, to commercial offices, healthcare, college/university, and other facilities.