(1) The Commission may by legislative instrument make regulations-

(a) for preserving existing uses of public water;

(b) for controlling any change in the course, current or cross-current of any contained surface water in order to obtain the most beneficial use of the water;

(c) relating to the declaration of water emergencies;

(d) for regulating the use of contained water and ground water;

(e) for the carrying out of investigations in respect of any function of the Commission;

(f) for the protection of watersheds;

(g) for the granting of permits to discharge waste into water bodies;

(h) for prescribing the acceptable levels of pollution;

(i) to regulate or prohibit the doing of any act by any person in a protected catchment area;

(j) for the levying of charges under this Act; and

(k) generally for the purpose of giving effect to the provisions of this Act.

(2) An instrument under subsection (1) of this section shall be issued under the hand of the Chairman of the Commission.