26. Section 1 of the Principal Act is amended, in subsection (1) —

(a) by the insertion of the following definition:

“‘collective bargaining’ shall be construed in accordance with section 1A;”,

and

(b) by the substitution of the following definition for the definition of “excepted body”:

“‘excepted body to which this Act applies’ shall be construed in accordance with section 1B;”.