Since becoming an independent service on 20 December 2019, guardians have continued to use the Air Force’s uniforms. The first Chief of Space Operations, Gen John W. Raymond, has stated the service will adopt its own distinctive uniform, and the first Chief Master Sergeant of the Space Force Roger A. Towberman announced in September 2020 that two of its first unique uniforms will go through a testing period conducted by 120 guardians.
The Space Force's interim service dress uniform was inherited from the U.S. Air Force, which was adopted by Air Force chief of staff General Ronald Fogleman in 1994, replacing earlier blue service dress uniforms, and will continue to be used until the conclusion of the uniform tests. The Space Force service dress uniform is distinguished from Air Force service dress by a distinctive U.S. Space Force lapel insignia.
The uniform coat is single-breasted with three buttons and has one welt pocket on the upper left side and two lower pocket flaps. The buttons are silver-oxided, featuring traditional "Hap Arnold wings". Officer coats feature epaulets for the placement of rank. General officers wear a 1+1⁄2-inch-wide (3.8 cm) blue sleeve braid, while all other officers wear a 1⁄2-inch-wide (1.3 cm) blue sleeve braid. Like the Air Force, mirror-silver "U.S." insignia are worn on the collars, however Space Force guardians also wear a pair of U.S. Space Force lapel insignia. A silver name tag with blue detailing is worn on the right side of the uniform, while ribbons and occupational badges are worn on the left side of the uniform.
On 21 September 2021, John W. Raymond unveiled the prototypes of the Space Force's service uniform. It features a midnight blue jacket with six buttons on the right-hand side, platinum sleeve braids for commissioned officers, a midnight blue necktie that matches the jacket, platinum shirt, mirror-silver "U.S." insignia on the collars, dark grey pants, and black shoes. The new uniform is designed with women in mind to avoid the issues normally related to adapting them for women. The new uniforms will be issued for testing in the following months, before being distributed widely.
On 17 January 2020, the Space Force announced that its combat utility uniform would be the same OCP uniform as when it was Air Force Space Command. The full-color United States flag is worn on the left side of the uniform. The name tape, branch tape, and rank are embroidered in space blue, distinguishing it from the OCP uniforms worn by the Army and Air Force (the Army uses black thread for embroidery and wears the full-color flag on the right arm, except in combat areas where a subdued black flag is used). The Air Force uses spice brown embroidery thread and wears a subdued spice brown flag on the right arm of the uniform at all times.) The OCP uniform was first introduced by the Army in 2015 and adopted by the Air Force in 2019.