Section 4X of the Principal Act is amended as follows:

(a) by omitting from subsection (1) "Board" and substituting "Authority" ;

(b) by omitting from subsection (2)(a) "Board" and substituting "Authority" ;

(c) by omitting from subsection (2)(c) "Board" and substituting "Authority" ;

(d) by omitting from subsection (2)(e) "Board" twice occurring and substituting "Authority" ;

(e) by omitting from subsection (2)(f) "Board" first occurring and substituting "Authority" ;

(f) by omitting from subsection (2)(f) "Board" second occurring and substituting "Authority" ;

(g) by omitting from subsection (3) "Board" and substituting "Authority" .