Background: Central venous catheters (CVCs) support the administration of chemotherapy and other medications, blood products, fluids, and nutrient infusions, and reduce the need for peripheral blood sampling in children with cancer. CVC use is also associated with the risk of central-line-associated bloodstream infection (CLABSI). Despite the implementation of CLABSI care bundles, CLABSI prevention remains challenging. Method: This project implemented supportive preventive care interventions to decrease CLABSI in pediatric hematology/oncology patients in a tertiary hospital in the Middle East region. Interventions included bathing or skin care once daily, oral care twice daily, and ambulating patients three times daily. Parent and staff education materials were developed. The project moniker was Step 1-2-3, inspired by successful implementations of such measures in a U.S. cohort showing reduced CLABSI rates. The project used a mixed methods approach. We report outcomes through August 2022. Results: Pre-project (12/2019-05/2020) five CLABSIs occurred in the inpatient unit. Following the implementation of Step 1-2-3, Pediatric Oncology achieved 492 CLABSI-free days. Six CLABSIs then occurred over a short period of time between October 2021 and January 2022, which was associated with high levels of patient acuity and staff sick leave. The inpatient ward remained CLABSI-free from January 9, 2022, through August 2022. Discussion: Extended periods of CLABSI-free care in a pediatric hematology/oncology unit are achievable. A variety of factors contribute to the sustainability of being CLABSI-free. Data collection and analysis are important factors which aided in our understanding of our own CLABSI events.