What is the role of the HERS Registry?

The HERS Registry serves as a central database specifically designed to track certified Home Energy Rating System (HERS) ratings for residential buildings. It plays a crucial role in providing a standardized method for rating the energy efficiency of homes. By maintaining comprehensive records of these ratings, the registry ensures that the data can be accessed by stakeholders such as builders, real estate agents, and homebuyers, who are interested in understanding the energy performance of a property. This transparency helps in making informed decisions regarding energy-efficient homes and promotes energy-efficient practices in the residential construction industry.

Other options, while related to aspects of home energy efficiency and construction, do not align with the primary function of the HERS Registry. For example, approving construction permits typically falls under the jurisdiction of local building departments, selling home efficiency products is a commercial endeavor unrelated to the registry's purpose, and conducting energy audits involves inspection services rather than data tracking. Thus, tracking certified HERS ratings is the sole focus of the HERS Registry, making it the correct answer.