(1) The Authority must establish and keep a separate fund in relation to each covered industry.
(2) The funds must be kept and applied in such a way that enables the money of the Authority that relates to each covered industry to be separately identified.
(3) However, the Authority may establish a common fund—
(a) to pay the expenses of the Authority that relate to more than one covered industry; or
(b) to invest the money of the Authority in an investment for more than one covered industry.