1) Any agreement entered into before the commencement of this Act which is permitted by this Act remains valid and binding.
2) Any provision in a collective agreement concluded in a bargaining council that was in force immediately before this Act came into effect remains in effect for--
a) six months after the commencement date of this Act in the case of a provision contemplated by section 49(1)(a) to (d); and
b) 18 months after the commencement date of this Act in the case of a provision contemplated by section 49(1)(e).