Editor's Note: The below applies to enlisted personnel, only. Commissioned Officer requirements are similar, but slightly different (for example, officers wear rank on the epulete or collar, and not on the sleeves). For commissioned officer uniform requirements, see Air Force Instruction 36-2903 - DRESS AND PERSONAL APPEARANCE OF AIR FORCE PERSONNEL.
Service Dress Uniform
This uniform consists of the blue service coat and trousers/slacks or skirt (women), light blue long- or shortsleeved shirt, and polyester herringbone twill tie for men or tie tab for women. With arms hanging naturally, the sleeves of the service coat will end approximately 1/4 inch from the heel of the thumb. Ensure the bottom edge of the coat extends 3 to 3 1/2 inches below the top of the thigh.
Mandatory Accoutrements. Mandatory accoutrements to be worn with the service dress coat are:
US Lapel Insignia. The US lapel insignia is placed halfway up the seam, resting on but not over it. The bottom of the insignia is horizontal with the ground.
Name Tag. On 1 October 2002, General John Jumper approved the name tag as a mandatory item to be worn on the service dress uniform. The name tag will be nickel plated with a matte finish. (Note: The photo above does not show the name tag).
Ribbons. Center ribbons resting on but not over the edge of the welt pocket. Wear three or four in a row. Wear all authorized ribbons and devices.
Chevrons. Center the sleeve chevron (4-inch for men; 3 1/2 or 4-inch for women) halfway between the shoulder seam and elbow bent at a 90-degree angle.
Aeronautical Badges. Aeronautical badges are mandatory. See below for information on the wear of aeronautical badges and other badges.
Optional Accoutrements. Optional accoutrements include:
Badges. Aeronautical badges are mandatory; others are optional. Wear highly polished badges only, resized or regular; do not mix sizes. Center the aeronautical, occupational, or miscellaneous badge 1/2 inch above the top row of ribbons. Center an additional badge 1/2 inch above the first one. Center the duty or miscellaneous badge 1 1/2 inches below the top of the welt pocket and centered, and/or on the right side centered between the arm seam and lapel, with the bottom edge of the badge parallel to the top of the welt pocket. EXCEPTION: The missile badge is only worn 1 1/2 inches below the top of the welt pocket and centered.
Tie Tack. Center the tie tack or tie clasp (Air Force coat of arms, grade insignia, or wing and star) between the bottom edge of the knot and the bottom tip of the tie.
Above information derived from AFPAM36-2241V1, PME Study Guide