 |
| English | Russian |
| category of threat | категория угрозы |
| I category | 1 разряд (all wood sold) |
| II category | 2 разряд (all wood from later thinnings and principal felling sold) |
| III category | 3 разряд (75% of wood from principal felling utilized) |
| IV category | 4 разряд (25-75% of wood from principal felling utilized) |