In ILPQC participating hospitals, the rate of nulliparous, term, singleton, vertex (NTSV) cesarean births was 25% in 2019, higher than the Healthy People 2030 target of 23.6%. In December 2020, ILPQC began implementation of the AIM Safe Reduction of Primary Cesarean Birth Patient Safety Bundle with 94 of the state’s 102 birthing facilities. Between December 2020 and December 2023, the collaborative’s NTSV cesarean birth rate declined from 24.9% to 22.8%. In December of 2023, due to hospital closures and other factors precluding ongoing participation, there were 74 teams actively participating in the bundle. ILPQC plans to continue implementation of the bundle through 2024 to support facility teams who have not yet achieved initiative goals in reducing their NTSV cesarean birth rates and associated racial and ethnic disparities and maintaining systems and cultural changes to promote safe vaginal births through a small group coaching model.