52 When collective agreement comes into force and expires

(1)

A collective agreement comes into force on—

(a)

the date specified in the agreement as the date on which it comes into force; or

(b)

if no such date is specified, the date on which the last party to the agreement, or its duly authorised representative, signed the agreement.

(2)

A collective agreement may provide that 1 or more of its provisions have effect from 1 or more dates before or after the date on which the agreement comes into force.

(3)

A collective agreement expires on the close of the earliest of the following dates:

(a)

the date specified in the agreement as the date on which the agreement expires:

(b)

the date on which an event occurs, being an event that is specified by the agreement as an event on the occurrence of which the agreement expires:

(c)

the date that is the third anniversary of the agreement coming into force.

(4)

Subsection (3) applies subject to section 53.