Section 4: Ascertainment of damage under this Act.

For the purposes of this Act, the certificate of any of the following persons shall be conclusive evidence as to any sum to be ascertained pursuant to the relevant provision hereinafter mentioned, that is to say-(a) in the case of section 1(2) (a) of this Act, of the Director of Telecommunications;
(b)
in the case of section 2(2) (a) and (b) of this Act, of the General Manager of the National Electric Power Authority; and
(c)
in the case of section 3(2) (a) of this Act, of the Director of Petroleum Resources.