The document provides an overview of medical device regulations from various regulatory agencies around the world. It discusses the purpose of regulations to control human behavior and ensure safety outcomes. Key regulatory agencies discussed include the TGA, FDA, PMDA, and EU, outlining their missions to protect public health through regulatory excellence and appropriate controls. A regulatory framework hierarchy is presented from laws to standards to guidance. Classification determines the extent of control and conformity assessments required. Cochlear implant systems are classified differently by various agencies. The key regulations governing Cochlear are also listed.