Chief Warrant Officers 2 wear collar grade insignia on the right collar point of the short-sleeve shirt worn with the Service Khaki uniform. The same insignia of grade is worn as a headgear device on the right side of the Garrison Cap, with their specialty mark on the left side.
In crafting its collar grade insignia for Warrant Officers (WO) and Chief Warrant Officers (CWOs), the United States Navy pretty much ignored the system it employed for WO/CWO sleeve insignias and instead came up with a bifurcated color scheme using gold and silver on a blue enamel background, with silver being the junior color to gold.
The collar grade insignia for CWO-2 consists of a bar of blue enamel with two “breaks” in gold-colored metal placed symmetrically on the bar; advance to CWO-3, however, and instead of the expected third break of gold metal to reflect the third level in the CWO cadre, only one silver break is used. Compare this with the CWO-2 sleeve insignia, which is made with a gold-colored lacing background and two blue “breaks—the same number of breaks as the collar grade insignia, but with colors reversed. And the CWO-3 sleeve insignia design? Although it has just one bar like the collar insignia, it foregoes the color switch but still reduces the number of breaks to one.