Engs. Luis A Vargas and Mauricio Coto (MYV) attended this 4 hours-course regarding the use of the Seismic Dilatometer (SDMT), being the course instructors both Prof. Silvano Marchetti and Eng. Diego Marchetti. The course was taught at the room of Allan McConnell, at the Hyatt Hotel (Hungtington Beach, California). The course was presented to a small group of both new and old DMT users, including: Allan McConnell, Glen Beavan, and Andrew Ferguson (Insitu Geotech Services, Australia), Marco Holtrigter (Ground Investigation Ltd, New Zealand) and Adam Bench (GPE, Inc., Florida), as well as L Vargas and M Coto (MYV Soluciones Geotécnicas, Costa Rica).