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The Ranger Tab is a service school military decoration of the United States Army signifying completion of the 61-day long Ranger School course in small-unit infantry combat tactics in woodland, mountain, and swamp operations.
Those graduating from Ranger School are presented with the Ranger Tab, which is worn on the upper shoulder of the left sleeve of a military uniform, as specified in Army Regulation 670–1, "Wear and Appearance of Army Uniforms and Insignia." Wearing the tab is permitted for the remainder of a soldier's military career. The cloth version of the tab is worn on the Army Combat Uniform and Class-A dress uniform of the U.S. Army; a smaller, metal version is worn on the new Army Service Uniform.
It is currently one of four permanent individual skill/marksmanship tabs authorized for wear by the U.S. Army. In order of seniority, they are the President's Hundred Tab, the Special Forces Tab, the Ranger Tab, and the Sapper Tab. Only three may be worn at one time.
U.S. Marines and Airmen presented with the Ranger Tab are not authorized to wear it on their uniforms.
Award Eligibility 
The Commandant of the United States Army Infantry School may award the Ranger Tab to any person who successfully completed a Ranger Course conducted by that school.
The Commander, United States Army Human Resources Command, may award the Ranger Tab to any person who was awarded the Combat Infantryman Badge while serving during World War II as a member of a Ranger Battalion (1st Battalion – 6th Battalion inclusive) or in the 5307th Composite Unit, Provisional (Merrill's Marauders);to any person who was awarded the Combat Infantryman Badge while serving during the Korean Conflict with the Eighth Army Ranger Company (11 October 1950 to 27 March 1951); or to any person who successfully completed a Ranger Course conducted by the Ranger Training Command at Fort Benning, Georgia.
See also