The Guy Bomford Prize is awarded by the International Association of Geodesy for outstanding contribution to Geodesy. It was established by the British National Committee for Geodesy and Geophysics to mark the contributions to geodesy of Brigadier G. Bomford, formerly of the University of Oxford and a Past President of the International Association of Geodesy. It has been inaugurated by the I.A.G. in 1975. The Prize is normally awarded at intervals of fours years on the occasion of the General Assembly of the I.A.G. held concurrently with the General Assembly of the International Union for Geodesy and Geophysics. The following rules for the award of the Guy Bomford Prize may be altered by the I.A.G. Executive if a majority of its voting members sees a necessity to do so.