HUD is funding studies to improve knowledge of housing-related health and safety hazards and to improve or develop new hazard assessment and control methods, with a focus on lead and other key residential health and safety hazards. HUD is especially interested in applications that will advance our knowledge of priority healthy homes issues by addressing important gaps in science related to the accurate and efficient identification of hazards and the implementation of cost-effective hazard mitigation. This includes studies using implementation sciences in identifying specific conditions under which residential environmental hazard interventions, that have been shown to be effective in specific housing types and residential settings, can be assessed in other contexts.