Commentary on Sections Part 5: Inaccuracies in the Register Section 66: Shifting boundaries
172.This section provides that adjacent proprietors bounded by a natural water feature may, by registered agreement, provide that subsequent change to the physical boundary by the process of alluvion (i.e. gradual, imperceptible and non-temporary change to the water feature over time) should have no effect on their title boundary. In such circumstances, alluvion will not make the register inaccurate. Subsection (3) makes this clear.