(1)  An amendment of an LPS comes into effect on –

(a) a date, after the date on which the approval of the amendment of an LPS is signed in accordance with section 40R , specified in the approval as the date on which the amendment is to come into effect; or

(b) if no date is specified in the approval as the date on which the amendment is to come into effect – 7 days after the date on which the approval is signed in accordance with section 40R .

(2)  The Commission must notify a planning authority of an approval under section 40Q of an amendment of an LPS that applies to the municipal area of the planning authority.

(3)  A planning authority that is notified under subsection (2) must give the prescribed notice of the approval of an amendment of an LPS to which the notice relates.

(4)  The failure to comply with a provision of this Part within the period referred to in the provision does not invalidate an approval under section 40Q of an amendment of an LPS.