The following surveyors have successfully passed the HYPACK Certification Test. This is a difficult test that is given upon the completion of a 3-day HYPACK Training Seminar. Users must demonstrate advanced knowledge in Survey Design, Hardware Configuration, Survey, Single Beam Processing, Sounding Selection, Multibeam Calibration and Processing, Volume Computations and General Hydrography in order to pass. Less than 5% of surveyors who take the test achieve a passing score.