Helmintho-onosis is a group of parasitical disease, pathogens of which at larva stage can be found in various fish species, while at adult age can be found in humans and animals. Samples of 10-15 live or freshly asleep fishes of the species under examination that must be registered with the indication of date of research, fish species and the place of fishing. The document consists of 5 Secs. Section 1 lays down general provisions. Section 2 regards research of fishes. Section 3 regards determin