From Specialist to Chief Master Sergeant of the Space Force

On Jan. 29, 2021, the U.S. Space Force announced the rank naming structure for its guardians, as the members of the U.S. military’s newest service branch are known. On Sept. 20, 2021, the branch released updated insignia for its enlisted guardians. The Space Force is the sixth independent U.S. military service branch, tasked with missions and operations in the rapidly evolving space domain.

Read Next: Learn more about the Space Force

Like the Air Force, enlisted Space Force ranks are divided into three levels: specialists (E-1 through E-4), noncommissioned officers (E-5 and E-6), and senior noncommissioned officers (E-7 through E-9).

• Specialist ranks (E-1 through E-4)
• Noncommissioned officer ranks (E-5 and E-6)
• Senior noncommissioned officer ranks (E-7 through E-9)
• Chief master sergeant of the Space Force (E-9S)

Space Force Specialist Ranks: E-1 tThrough E-4

Specialist 1 (E-1)

New members of the Space Force first attend and graduate from Air Force basic military training with Space Force-specific elements. After entering the Space Force they are known as specialists, with a designation of specialist 1 (E-1).

Specialist 2 (E-2)

Promotions to E-2 are typically automatic as long as the member meets the service’s standards for performance and behavior. The only requirement for Air Force advancement is 6 months’ time in grade (TIG) and time in service (TIS).

The rank of specialist 2 brings with it the responsibility of adjusting to the way of military life and becoming proficient in a Space Force occupational specialty. For the Space Force, that means entering training for one of the service’s career field after graduation from basic training.

Specialist 3 (E-3)

Specialist 3 guardians are expected to be fully adjusted to the Space Force and military life, and their duties focus on efficiently and effectively carrying out their assignments and honing their job skills.

Specialist 2 Guardians must have at least 10 months’ time in grade before being promoted to specialist 3.

Specialist 4 (E-4)

The rank of Specialist 4 is a transition period from journeyman to noncommissioned officer (NCO). Specialist 4 guardians in the Space Force are expected to conduct themselves in accordance with established standards, providing a positive influence and example for their subordinates and peers alike.

Space Force Noncommissioned Officer (NCO) Ranks: E-5 and E-6

Space Force enlisted members in E-5 and E-6 pay grades are NCOs. Space Force NCOs are expected to exemplify personal integrity, loyalty, leadership, dedication and devotion to duty, including upholding Space Force policies, traditions and standards.

Sergeant (E-5)

The entry point of the NCO tier, sergeants are expected to demonstrate technical expertise and emerging leadership capability. At this grade, guardians begin to assume direct supervisory responsibilities for junior enlisted personnel.

Moving up in the Space Force ranks: For sergeant, selectees’ average time in grade was about one year, and time in service was 3.38 years, the Space Force said in July 2025.

Technical Sergeant (E-6)

Technical sergeants are recognized as seasoned technicians and supervisors who combine advanced technical proficiency with expanded leadership responsibilities.

Moving up in the Space Force ranks: Advancement to technical sergeant follows the same competitive standards used for sergeant but with higher eligibility standards. For technical sergeant, selectees’ average time in grade was 3.39, years and time in service was eight years, the Space Force said in July 2025.

Space Force Senior Noncommissioned Officer (SNCO) Ranks (E-7 through E-9)

Senior Noncommissioned Officers (SNCOs) are entrusted with maintaining the highest standards of integrity, leadership, loyalty and technical excellence, while serving as key mentors, managers and advisers in the force.

Master Sergeant (E-7)

The Master Sergeant (MSgt) is the first tier of the SNCO ranks. Guardians at this grade function as both technical experts and advanced leaders. Master sergeants carry significantly expanded responsibilities, requiring a broad operational perspective that blends technical mastery with managerial oversight.

Moving up the Space Force ranks: Promotion is determined through a competitive process. For master sergeant, selectees’ average time in grade was 4.02 years and time in service was 12.48 years, the Space Force said in July 2025.

Senior Master Sergeant (E-8)

The Senior Master Sergeant (SMSgt) serves primarily as a superintendent and manager. At this level, broad management and leadership skills are essential, as SMSgts are expected to oversee large teams, manage resources and ensure readiness across their units.

Moving up the Space Force ranks: Advancement to senior master sergeant is among the most competitive transitions in the enlisted structure. Promotions are based on performance, leadership, breadth of experience, education and overall mission impact.

Chief Master Sergeant (E-9)

The Chief Master Sergeant (CMSgt) serves in the capacity of senior enlisted adviser, manager and mentor.

Moving up the Space Force ranks: Promotion is based on a highly selective process that places emphasis on leadership impact, mission contributions and overall readiness.

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Chief Master Sergeant of the Space Force

The Chief Master Sergeant of the Space Force (CMSSF) is the highest enlisted rank in the service. Appointed by the Chief of Space Operations (CSO), the CMSSF serves as the senior enlisted adviser to both the CSO and the secretary of the Air Force. The CMSSF represents the interests of the entire enlisted force at the highest levels of the Department of the Air Force, the Department of Defense and the U.S. government.

This position carries unique responsibilities for shaping enlisted policy, guiding force development and ensuring the welfare, readiness and effectiveness of all guardians.

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