This report presents the findings from the third wave of a longitudinal study to investigate perceptions of administrative burden among providers of children's education and care services. The study reveals a number of positive findings including consistently high levels of support for the National Quality Framework (NQF) and a significant decline in perceptions of overall burden associated with the administrative requirements of the National Law and Regulations -- down from 15 per cent who reported very high levels of burden in Wave I to nine per cent in Wave III. This decrease is associated with three specific administrative requirements -- supervisor certificates, provider and service approvals, and ensuring staff know about the National Law and Regulations. It is notable that each of these requirements has been the focus of targeted efforts by governments and the Australian Children's Education and Care Quality Authority (ACECQA) to support services and minimise administrative burden. There have also been significant improvements between Waves I and III and between Waves II and III in responses to the following statements: (1) that administrative burden has reduced since the introduction of the National Law and Regulations; and (2) that the administrative requirements of the National Law and Regulations are simpler than the previous. licensing and accreditation systems. [For "Report on the National Quality Framework & Regulatory Burden - [Wave I]," see ED626140. For "Report on National Quality Framework and Regulatory Burden - Wave II," see ED626141.]