R-2000 is a voluntary, performance-based standard for new homes, which goes beyond building codes. The technical requirements involve three main areas of construction: energy performance, indoor air quality and environmental responsibility. R-2000 homes must operate within a specific energy budget, based on the characteristics of the home and the climate conditions where it's built. Typically, R-2000 homes need 30 percent less energy to operate than conventional new homes. Only home builders who have completed R-2000 builder training and hold a current R-2000 builder license can build homes that can be certified to the R-2000 Standard. For regional contact information, visit the Natural Resources Canada New Housing Resource Centre.