The appropriate embroidered rank/rate collar insignia (NWU Type I) and chest insignia (NWU Type III) will be worn by personnel E4-O10. Flag officers wearing the NWU Type I, shall center the insignia at a point approximately 1 inch from the front and lower edges of the collar and the vertical axis of the insignia will lie along an imaginary line bisecting the angle of the collar point. Eagle insignia will face the front (inward). On the parka, the rank tab edge is located 2 inches to the left of the wearer from the primary zipper. On the fleece, the rank tab edge is 1/2 inch from the zipper on left side, and extends down from the chest seam.
a. Rear admirals will wear the regular size embroidered grade insignia. Vice admirals and admirals will wear a slightly smaller size insignia to properly fit on the collar and the chest tab. The collar insignia will be centered between the top and bottom edge of the collar, with the outer edge of the insignia approximately 1 inch from the front edge of the collar, and with one ray of each star pointing toward the top edge of the collar. On the NWU Type III, the rank tab is inserted into and pulled through the slip-on chest insignia. The chest insignia is then centered over the rank tab.
b. Line officers (O1-O6) will wear the regular size embroidered grade insignia.
c. Staff corps officers and warrant officers will wear the regular size embroidered grade insignia on the right collar and appropriate equally sized corps device or warrant officers' line device on the NWU Type I. On the NWU Type III, only the grade insignia is worn on the rank tab with the exception of Chaplains. Chaplains are authorized to wear the Chaplain Staff Corps Insignia above their grade insignia.
d. Chief Petty Officers will wear the 1-1/4 inch embroidered cap insignia on NWU Type I and the standard chest insignia on the NWU Type III.
e. Petty officers will wear the appropriate miniature embroidered petty officer collar insignia on the NWU Type I and the standard chest insignia on the NWU Type III.
f. Enlisted rating specialty insignias and staff corps devices (except Chaplains) are not authorized to be worn on any NWU.
g. The silver thread NWU Type III CAPTAIN (O-6) rank insignia may be optionally worn in non-tactical environments only.