The University of Pennsylvania, through its Clinical Practices division, was awarded a $1,159,302 Project Grant under the National Institute of Nursing Research's (NINR) Nursing Research program (CFDA 93.361) to conduct a hybrid effectiveness-implementation trial of a nurse-led firearm safety intervention in the pediatric inpatient setting. The project aims to reduce firearm-related deaths in children by scaling out an evidence-based secure firearm storage intervention to pediatric hospitals. The study will adapt the S.A.F.E. Firearm intervention for the inpatient setting and implement it across 12 nursing units at two Children's Hospital of Philadelphia (CHOP) hospitals. The project will test the intervention's effectiveness in improving secure firearm storage among parents and examine the implementation strategy's impact on outcomes like reach, fidelity, and acceptability. This research, aligned with NINR priorities, will accelerate the translation of evidence-based firearm safety interventions to improve population health and reduce health inequities.