In September 2019, directly after participation in Railway Interchange-2019, the largest railway forum in North America, the specialists of OKOndt GROUP went to Miami where a practical seminar for the client had been scheduled. Technical staff of Gonzales & Sons, American company, after the purchase of a single rail flaw detector UDS2-77 and a set for rail welds testing USR-01 from OKOndt GROUP needed a training on how to operate the devices. Engineers of OKOndt held both theoretical and practical sessions, our partners tried to work with tools by themselves and stayed satisfied with the results. Specialists of our company promised to conduct further consultations upon request.