Where are the collar devices located on Service Dress and working khaki shirts?

The collar devices on Service Dress and working khaki shirts are indeed not located anywhere on the shirt itself. In uniform guidelines, collar devices are typically worn on the collar of the shirt for formal uniforms, but there is a distinction with the NJROTC regulations where they are not applicable in those specific instances. This means that for Service Dress and working khaki shirts, cadets would not affix collar devices like rank insignia or other authorized devices in those spots. Instead, they may be worn on other uniforms where appropriate, ensuring that cadets comply with the prescribed uniform standards as outlined in their regulations.