In the
United States armed forces and
United States Uniformed Services, "scrambled eggs" is the nickname for the golden oak leaf and acorn embellishments (known as fretting) on the bills (visors) of framed service and dress uniform caps (called service caps in the Army, combination covers in the
Navy and
Coast Guard, barracks covers in the Marine Corps) worn by field grade and general officers in the rank and grade of
major (O-4) or higher in the
Army and
Marine Corps, and senior and flag officers in the rank and grade of
commander (O-5) or higher in the
Navy and
Coast Guard. Commissioned Officers of the
National Oceanic and Atmospheric Administration wear similar uniforms and wear the same embellishments as the Navy while Commissioned Officers of the
Public Health Service wear similar uniforms and wear the same embellishments as the Navy or Coast Guard depending upon the duties they are performing. Majors (O-4) and higher ranks in the
Air Force and
Space Force wear silver clouds and lightning bolts in lieu of oak leaves, sometimes referred to as "farts and darts". Majors (O-4), Lieutenant Colonels (O-5), and Colonels (O-6) wear silver clouds and lightning bolts where there are two clouds on each side of the visor while all Generals (O-7 to O-10) wear silver clouds and lightning bolts where there are three clouds on each side. Additionally, Generals serving as the Chief of Staff of the Air Force (CSAF) or as the Chairman or Vice Chairman of the Joint Chiefs of Staff (CJCS, VJCS) wears a row of silver clouds and lightning bolts around the cap band of their service caps or dress caps. The difference in grades when an officer assumes the wearing of embellishments is peculiar to the individual customs and traditions of each service. Due to the historical origins of naval Lieutenants and Commanders, a naval O-4 was historically classified as a senior type of Lieutenant rather than a junior type of Commander. Accordingly, the Army, Marine Corps, Air Force, and Space Force consider the grade of O-4 to be the first field grade officer rank, while the Navy and Coast Guard consider O-4 to still be a junior officer rank. At the
flag or
general officer level, O-7 and higher, additional embellishments are added to distinguish them from the
USN/
USCG senior officer and
USA/
USAF/
USMC/
USSF field grade officer ranks. == Civilian usage ==