The Building Performance Institute (BPI) is a non-profit organization dedicated to improving the energy efficiency and performance of buildings. It provides training, certification, and resources for professionals in the building industry, including contractors and energy auditors. BPI's standards help ensure that homes and commercial buildings are safe, comfortable, and energy-efficient. BPI certifications cover various areas, such as weatherization, energy auditing, and HVAC systems. By promoting best practices and offering educational programs, BPI aims to enhance the skills of professionals and improve the overall quality of building performance across the industry.