Systems of Co-ordinates and Projections

(1) The figure of the earth and the projection to be used in the computation of co-ordinates of any survey shall be the Universal Traverse Mercator Projection Zone 16 using the Land Surveyors 11 Clark 1866 figure having elements semi-major axis 6378206.4 International Metres, eccentricity squared 0.006768658. (2) Azimuths derived from the co-ordinates of existing control points shall always be used if possible. Astronomical azimuths of an appropriate accuracy and corrected for convergence are acceptable otherwise.