Large decaying logs inside Dvinsky Forest (IFL), which would not be found in a badly managed forest, remain moist even during severe droughts and at different decay stages, and are essential habitat for many indicator and specialist species of fungus, moss and lichen. FSC certification should help to protect IFLs as they are considered HCV2, however, FSC is certifying logging practices that are damaging or destroying these irreplaceable forests. Arkhangelsk Region, Russia.