As of 2015, it is illegal to keep a pure wolf as a pet in any state in the United States, according to Gray Wolf Conservation. Owning a 98-percent wolf-dog is legal on a federal level, but many states and localities have laws regulating or outlawing this practice.
States in which owning a wolf-dog hybrid is legal often impose many conditions on such ownership, advises The Bark. The owner may need a permit to own a wolf-dog, or he may have to register the animal. State or local authorities may mandate confinement of the animal in a particular type of enclosure. Anyone considering getting a wolf-dog should first check with his state's Fish and Game Department and his local animal control authorities, recommends Gray Wolf Conservation.