This report presents key findings from the first three years of the Quality Support Program (QSP). The QSP is an initiative involving the delivery by Australian Children's Education and Care Quality Authority (ACECQA) of free tailored professional development and support to approved providers and service leaders of eligible services across New South Wales (NSW), implemented in four stages. The objectives of the QSP are to improve the quality of participating services so they receive a rating of Meeting National Quality Standard (NQS) or higher, and to improve participants' knowledge of and confidence in the NQS. Participants were provided with bespoke resources; a QSP facilitator to answer questions, discuss improvement priorities and prompt critical reflection; and one-on-one targeted tailored support with continuous quality improvement. The structure of each QSP round consisted of an introductory workshop, provision of eLearning modules and other resources, service visits, support phone calls, video calls, and emails. Workshops and service visits were conducted in-person in Stages One and Two and mostly online in Stage Three due to COVID-19 restrictions. Different service types presented with different contexts and support needs. The QSP drew on the insights of participants to produce service-type specific resources.