The Secretary of State or the National Assembly for Wales may make arrangements for any person or body specified in the arrangements to exercise on his or its behalf, to such extent as is so specified, any function exercisable by him or the Assembly by virtue of regulations made by virtue of section 181 (including any such function in relation to appeals).

Any arrangements made under subsection (1) shall not prevent the Secretary of State, or as the case may be the National Assembly for Wales, from exercising the function in question himself or itself.