Senior Airmen (SrA) wear a chevron of three stripes with a silver star in the center. Pay grade is E-4. Personnel serving as SrA are in a transition period from journeyman/worker to NCO. They must develop supervisory and leadership skills through PME (Professional Military Education) and individual study. All SrA should conduct themselves in a manner commensurate with established standards, thereby asserting a positive influence on other airmen. The SrA must, at all times, present the image of competence, integrity, and pride. The official term of address is “senior airman” or “airman.”