The purpose of the Healthy Homes and Weatherization Cooperation Demonstration Grant Program NOFO program is to provide housing interventions in lower-income households that are conducted jointly through the coordination of HUD’s Office of Lead Hazard Control and Healthy Homes (OLHCHH)-funded Healthy Homes Production (HHP) program and programs funded by the U.S. Department of Energy’s (DOE) Weatherization Assistance Program (WAP). A critical goal of this demonstration is to determine whether this coordinated delivery of services achieves cost-effectiveness and better outcomes in improving the safety and quality of homes, including health and energy efficiency. The coordinated assessments and interventions are expected to provide additional benefits to households through the combined mitigation of health and safety hazards and improvements in energy efficiency and comfort. These grants are intended to facilitate the leveraging of assets from both programs and support the exploration of different models of service delivery (e.g., recruitment strategies and partnerships). HUD-funded programs identify and mitigate key residential health and safety hazards such as lead-based paint hazards, mold and moisture, pest infestation, poor indoor air quality, radon, and injury hazards as described in Chapter 1 of the Healthy Homes Program Guidance Manual (https://www.hud.gov/sites/documents/HHPGM_FINAL_CH1.PDF). DOE-funded programs conduct energy audits and implement energy conservation measures, while also conducting interventions that improve health and safety (e.g., improved ventilation, installing carbon monoxide and smoke detectors).