What collar device corresponds to the rank of O-6 and higher in NJROTC?

In the NJROTC (Naval Junior Reserve Officers' Training Corps) program, the rank of O-6, which corresponds to a Captain in the Navy, as well as ranks higher than this, are represented by a specific collar device. For officers of this rank and above, there is indeed a significant difference in how their devices are displayed compared to lower ranks.

The collars of officers at this level do not feature a specific insignia device that is visibly worn, such as a star or bars. Instead, it is recognized that O-6 and higher ranks are designated as senior officers and therefore do not wear a separate device that would be visible on their uniforms like those worn by lower ranks. This lack of a distinct collar device for these ranks, symbolizing their status within the military hierarchy, is a key reason for the correctness of the answer indicating that they do not have a device. It’s essential to understand the traditional customs and insignias in naval uniform regulations, which dictate how ranks are marked and acknowledged within the service.