(1) The conditions of employment set by an industrial instrument are the minimum entitlements of employees.
(2) The provisions of a contract of employment or other contract do not have effect to the extent that they provide an employee with a benefit that is less favourable to the employee than the benefit to which the employee is entitled under an industrial instrument.
(3) In the case of a contract determination or contract agreement, a reference in this section to an employee is a reference to a driver or carrier and a reference to employment is a reference to engagement as a driver or carrier.