<qa>  What is the goal of the study?One goal of the study is to determine whether installed products that modify exposure to the injury hazards can reduce unintentional injury across the leading mechanisms for young children over time. Another goal is to determine the required maintenance of installed products over time. At routine home visits or at the request of a participant prior to the 18-month follow-up time point, installed interventions will be assessed for their presence and function and broken or malfunctioning products will be repaired or replaced if it is within the study budget. Additionally, if the study budget allows, the investigators will repeat the injury hazard survey and perform the installation intervention if a family relocates prior to the child being 24-months of age, within a 3 hour driving radius of CCHMC, and has not moved more than three times. 