Delegated legislation refers to the laws or regulations made by non-legislative bodies or persons, under the authority of the legislature or parliament. In other words, it is the process by which a higher legislative body delegates some of its law-making powers to other bodies or individuals. These delegated bodies may include government departments, local councils, regulatory agencies, or other authorized entities. Delegated legislation is often used to provide detailed rules and regulations on specific issues that may be too complex or technical for the legislature to handle effectively. It is also a way for the government to respond more quickly to changing circumstances or emergencies. Therefore, the correct answer is non-legislative bodies.