67—Declaration of notifiable contaminants
(1) The regulations may declare a contaminant to be a notifiable contaminant.
(2) The Minister may, if the Minister considers it to be necessary in the interests of public health because of urgent circumstances, by notice in the Gazette, declare a contaminant to be a notifiable contaminant.
(3) A regulation or declaration under subsection (1) or (2) may be varied from time to time, or may be revoked, but a declaration of the Minister under subsection (2) will, unless revoked sooner, expire 6 months after publication in the Gazette.
(4) The revocation or expiry of a declaration of the Minister—
(a) does not prevent the contaminant the subject of the declaration being declared to be a notifiable contaminant by the regulations; and
(b) does not prevent the contaminant being the subject of a further declaration of the Minister if the Minister considers that urgent circumstances again warrant the declaration of the contaminant to be a notifiable contaminant.