Section 20 has effect as if references in subsections 20(1), (2) and (3) to an award/agreement free employee also included references to a non‑national system employee to whom either of the following paragraphs applies:
(a) a State industrial instrument applies to the employee, but it does not specify, or provide for the determination of, the employee's ordinary hours of work;
(b) no State industrial instrument applies to the employee.