(z)the maintenance and inspection of records and returns;(za)the restrictions on storage of insecticides during transport or otherwise alongwith articles of food;(zb)the maximum proportion of any insecticide which may be added to, or contained in, any preparation for domestic use and the restrictions thereon;(zc)the manner in which refusal to register an insecticide or cancellation of certificate of registration thereof may be notified;(zd)the officer or authority to whom the Central Government may delegate any of the powers and functions conferred on it by this Act;(ze)any other matter which has to be, or may be, prescribed.