To describe a quality improvement project aimed at increasing collection of a "Core Set" of functional outcome measures in an inpatient rehabilitation facility (IRF), characterize implementation strategies used across 4 study phases, and evaluate program adoption and maintenance. A 30-bed brain injury unit of a 132-bed IRF. Participants included physical therapists (5 full-time, 2 part-time, and 30 hourly as needed) and 764 individuals with traumatic brain injury (TBI) who received care during the project period. In this descriptive observational study, we operationalize implementation strategies selected for 4 project phases: Exploration, Preparation, Implementation, and Sustainment. We define each implementation strategy using the Expert Recommendations for Implementing Change and report on program adoption and maintenance. Adoption (proportion of TBI-related admissions with completed outcome measures) and maintenance (adoption over 4years). Preparation phase strategies focused on local adaptations, education, environmental preparation, and collaboration with informatics. Implementation phase strategies included reminders, feedback, champions, and iterative adjustments. Sustainment strategies focused on integration into standard practice. Adoption increased postinitiation for all measures except one. Despite improvements, a notable portion of measures remained incomplete. Increases in outcome measure collection were maintained for 2 to 4years, but a significant decline in paired admission and discharge scores suggests a reduced ability to monitor change over time. This study provides an example of a clinically driven quality improvement project and selected implementation strategies used to increase the collection of standard outcome measures in IRF. By leveraging the Expert Recommendations for Implementing Change framework, we aim to enhance comparability with similar efforts elsewhere. The results demonstrate the program's successes and challenges, highlighting the need for interdisciplinary clinical and research collaboration to support the translation of knowledge between research and clinical practice and inform meaningful improvements in care across TBI rehabilitation.