DEC is encouraging campers to use local firewood and follow New York State firewood regulations to help prevent the spread of invasive species. Untreated firewood – firewood that has not met the state’s heat treatment standard – can contain invasive pests that kill trees. To protect New York’s forests, untreated firewood should not be moved more than 50 miles from its source of origin. Many people take campfire wood from their backyards or neighborhoods as they head out to a favorite camping spot, not realizing the wood may be hiding the eggs, larvae, spores, adults, or even seeds of invasive threats.