(1) The Minister, in writing, may delegate to a person any of the Minister's functions or powers, other than (a) this power of delegation; or(b) any power conferred under sections 19 , 47 (2) , 110 (2) , Division 3 of Part 5 , Parts 6 and 7 and section 279 .(2) The Secretary, in writing, may delegate to a person any of the Secretary's functions or powers other than (a) this power of delegation; or(b) any power conferred under section 164 .