A gold colored metal and enamel device 1 3/16 inches (3.02 cm) in height overall, consisting of a shield blazoned: "Per fess wavy Argent and Purpure, in chief a dolphin naiant embowed facing sinister Sable, in base a dolphin naiant embowed facing sinister of the first." Attached below the shield, a Black scroll inscribed "CARIDURO AUF" in Gold letters.
Black, lilac, white and gold are the school colors. The school's mascot is the dolphin. Black represents determination, a virtue the cadets possess to accomplish their personal as well as academic endeavors. Lilac (purple) symbolizes loyalty an attribute the cadets have for their country and for each other. White alludes to maturity, a characteristic the cadets reflect in their respectful manners and decisions. Gold signifies honor, a quality they uphold every day. The black and white dolphins (the school's mascot) represent the City of Fajardo and are symbolic of the city and school's cultural diversity, equality and spirit. The forward motion of the dolphins breaking through the rough waves is representative of the school's full motto of "CARIDURO AUF", is a combination of a Spanish word ("Coriduro") and a German word ("Auf") which translates to English as "No storm too strong! Hard nose all the way!"
The shoulder loop insignia was authorized 15 March 2012.