The Obama Administration just announced a new endangered species protection law, and it’s already generating controversy.

According to the AP, “The new policy would clarify that a plant or animal could be listed as threatened or endangered if threats occur in a ‘significant portion of its range,’ even if the threat crosses state lines and does not apply in the species’ entire range.”

Care2com reports that the new rule would replace Bush-era laws that allowed animals to be classified differently in neighboring states. Those laws led to the gray wolf massacre of 2009, when the states tried to lift protections for wolves in Idaho and Montana but leave them in place in Wyoming, where a state law allowed the predators to be shot on sight. The courts intervened and reinstated protections across the state, before Congress entered the dispute and tried to remove Idaho and Montana protections. Wyoming is currently deciding whether or not to lift protections on its gray wolves.