Cheyenne, WY – The U-S Fish and Wildlife SErvice is expected to rule soon whether Wyoming's plan to manage gray wolves is acceptable. U-S Interior Department officials aren't saying expactly when their decision will be announced. Wyoming Chief Deputy Attorney General Mike O'Donnell says the rule could come as early as Thursday. The agency has been reviewing wolf management plans submitted by Wyoming, Montana and Idaho. All three states must have acceptable plans before the gray wolf can be removed from the endangered species list. Wyoming's plan is the most controversial because it would allow wolves to be killed with few restrictions outside protected areas.