64Duration of accreditation

64  Duration of accreditation  (1) The accreditation of a water resource plan ceases to have effect at the earlier of the following times:  (a) when the water resource plan ceases to have effect;  (b) the end of the period of 3 years after an amendment of the Basin Plan that affects water resource plan accreditations comes into effect, if the version of the Basin Plan used under subsection 63(6) in accrediting the water resource plan was in effect before that amendment came into effect. Note: For when an amendment of the Basin Plan affects water resource plan accreditations, see subsection 48(8).  (2) The Minister may extend, or further extend, the 3 year period mentioned in paragraph (1)(b). The extension or further extension must be made in writing.  (3) An extension or further extension made under subsection (2) is a legislative instrument, but section 42 (disallowance) of the Legislation Act 2003 does not apply to the extension or further extension.  (4) An extension or further extension made under subsection (2) must not have the effect of extending the 3 year period mentioned in paragraph (1)(b) by more than one year.  (5) An extension of a period under subsection (2) cannot be made after the end of the period or the period as previously extended.