rate just below O-1 (NATO rank code OF-1). On 4 June 2018, the Chief of Naval Operations announced the reestablishment of the rank of warrant officer one (pay grade W-1), for cyber warrant officers, and solicited applications for the rank/grade. These warrant officers will receive their appointment via warrant and not via commission. They will incur a six-year service obligation once promoted to W-1. A minimum of three-years in grade with a total service time of 12 years must be achieved before appointment and commission to chief warrant officer (W-2). However, the President also may grant appointments of warrant officers in the grade of W-1 via commission at any time as well as the Secretary of the Navy may also appoint warrant officers in that grade via commission, through additional regulations. In mid-December 2018, the Navy announced that six selectees had been named. They will wear a distinctive cap badge with two crossed anchors. Warrant officer rank insignia is the only officers' insignia that is not the same for all branches of the U.S. military, with one exception. The rank insignia for a CW5 became the only universal insignia within the warrant officer ranks when the U.S. Navy promoted its first CWO5 in 2002 and the Army adopted the emblem in 2004. Warrant officers in the United States are classified as officers and are in the "W" category (NATO "WO"); they are technical leaders and specialists. Chief warrant officers are commissioned by the president of the United States and take the same oath as regular commissioned officers do. They may be technical experts with a long service as enlisted personnel or direct entrants, most notably as U.S. Army helicopter pilots. Notable Warrant Officers Brigadier General Chuck Yeager, USAF was initially a flight officer (also known as "warrant officer (air)", in the USAAF during World War II MAJ (was CW3) Frederick Edgar Ferguson, USA (Medal of Honor recipient) MAJ (was WO1) Hugh Thompson, Jr., USA (Soldier's Medal recipient) CW5 David F. Cooper, USA CW4 Michael J. Novosel, USA (Medal of Honor recipient) CW4 Oscar G. Johnson, USA CW4 Michael Durant, USA CW4 Thomas J. Hennen, USA CW4 Keith Yoakum, USA CW3 Ronald D. Young Jr., USA CW2 Jason W. Myers, USA CW2 Louis R. Rocco, USA WO1 Robert Mason, USA CWO2/Chief Carpenter John Arnold Austin, USN WO1 John W. Lang, USN WO1 Floyd Bennett, USN (Medal of Honor recipient) CWO4 Hershel