Which numeric character identifies the skill level of an Airman?

In the context of the Air Force, the skill level of an Airman is identified by a numeric character associated with their specific career field or AFSC (Air Force Specialty Code). Skill levels range from 1 to 7, with Level 3 representing the "Apprentice" level. However, Level 4 is particularly significant as it denotes the "Journeyman" level, where an Airman has attained a certain level of experience and capability beyond their initial training. This level reflects that the Airman has completed further training, gained on-the-job experience, and is qualified to perform their duties with a higher degree of responsibility.

Understanding this progression is important as it not only indicates the competencies of an Airman but also influences their potential for advancement and future assignments within their career field. The skill level system plays a crucial role in the structure and development of Air Force personnel, contributing to the overall effectiveness of the service. Levels above 4, such as 5 (Technical Sergeant) and 6 (Master Sergeant), represent levels of leadership and supervisory responsibilities, which come with promotion and extended service requirements.