This assignment delves into EU law derogations, specifically focusing on Article 36 and its application in light of the landmark *Cassis de Dijon* case. It analyzes the various grounds for derogation, including public morality, health protection, and environmental concerns. The assignment also highlights the principle established by *Cassis de Dijon* regarding mandatory requirements and their impact on free movement of goods. Furthermore, it discusses recent developments in applying derogations and the need for evidence-based justification.