(1) The NT EPA must cancel an existing validated approval:
(a) if the NT EPA has granted a CDS approval to replace the existing validated approval – on the day the CDS approval is granted (unless the existing validated approval has ceased to be in force on the date stated in it); or
(b) if a circumstance mentioned in section 98(4)(b) applies – on the day after the expiry of the relevant period; or
(c) if notice is given to the NT EPA under section 99(8)(b) – on the day the notice is given.
(2) The NT EPA must give a notice of cancellation under subsection (1)(b) to the person who held the existing validated approval.