43Propagation of vertical datum

43 Propagation of vertical datum

43 Propagation of vertical datum

(1) This section applies to the following—

(a) a stratum survey,

(b) an urban land survey carried out to insert a new permanent survey mark if there are 2 permanent survey marks with accurate AHD values within 250m of the land surveyed.

(2) The surveyor must determine an accurate AHD value for—

(a) each new permanent survey mark or bench mark, and

(b) each permanent survey mark or bench mark to which the survey connects.