The use of the word "rank" for Navy enlisted personnel is incorrect. The term is "rate." The rating badge — a combination of rate (pay grade) and rating (specialty) is worn on the left upper sleeve of all uniforms in grades E-4 through E-6. E-1 through E-3 have color coded group rate marks based upon their occupational field. Group rate marks for E-2 and E-3 are worn on dress uniforms only. Personnel in paygrade E-1 do not wear group rate marks. Chief Petty Officers (E-7 through E-9) wear collar devices on their white and khaki uniforms, and rate badges on their Service Dress Blues.  

Enlisted Rating Insignia

Chief Petty Officers are always referred to as "Chief", "Senior Chief", or "Master Chief" as appropriate. As example: "Chief Jones" or in subsequent references, just "Chief".