5Current datum

5 Current datum (1) For section 117AG(b) of the Act, it is declared that the datum surface approximating the shape of the earth's surface defined by the reference frame designated under the National Measurement (Recognized-Value Standard of Measurement of Position) Determination 2017 (Cth) replaces the previous datum. Note for subregulation (1) The reference frame designated under the National Measurement (Recognized- Value Standard of Measurement of Position) Determination 2017 (Cth) is Geocentric Datum of Australia 2020 (GDA2020) at the Reference Epoch of 2020.0. National Measurement (Recognized-Value Standard of Measurement of Position) Determination 2017 (Cth) means the standard of measurement of that name maintained by the Chief Metrologist under section 8(1) of the National Measurement Act 1960 (Cth).