We report a statewide collaborative quality initiative to improve resuscitation and stabilization practices following introduction of the 6th edition of the Neonatal Resuscitation Program. Participants drafted a consensus toolkit of interventions and corresponding measures. Hospital teams collected baseline data, and implemented changes using PDSA-cycles and statistical process control charts. Nine Tennessee NICUs submitted data on 3771 resuscitations. "Special cause" improvements were achieved and sustained for pre-resuscitation checklists (77-90%) and team briefings (80-92%). Time to intravenous access (50-42 min), glucose infusion initiation (73-60 min), and antibiotic dosing (113-98 min) were also significantly reduced. Teams were unable to meet new NRP oxygen saturation targets. Improvements in post-resuscitation debriefing were not sustained, while communication with parents declined significantly (68-60%). Large-scale collaboration facilitated statewide implementation of new guidelines, while highlighting under-appreciated systems challenges among competing resource demands.