To ensure high standards in the delivery of Education, Health and Care Plans (EHCPs) and SEND support, Blackburn with Darwen has implemented a comprehensive five-tier quality assurance framework. This approach combines quantitative, qualitative, and impact-based methods to evaluate and improve practice across services. Each tier focuses on a different aspect of assurance—from individual service-level checks and compliance audits using digital tools, to capturing lived experiences, conducting multi-agency reviews, and reporting to governance boards—ensuring a robust and holistic process for continuous improvement.