The Vice Chief of Naval Operations (VCNO) is a United States Navy officer and is the second highest-ranking officer in the Department of the Navy. In the event that the Chief of Naval Operations (CNO) is absent or is unable to perform his duties, the VCNO assumes the duties and responsibilities of the CNO. The VCNO may also perform other duties that the CNO assigns to him. The VCNO is appointed by the President of the United States, and must be confirmed via majority vote by the Senate. By statute, the VCNO is appointed as a four-star admiral.