"Rate/Rank Insignia"(PDF). United States Navy Uniform Regulations. BUPERS, U. S. Navy. Archived from the original(PDF) on 4 July 2007. Retrieved 27 January 2007.
"Enlisted Rate/Rating Insignia". United States Navy Uniform Regulations CPO Rating. BUPERS, U. S. Navy. Archived from the original on 6 December 2006. Retrieved 26 January 2007.
"Chief Petty Officer". Frequently Asked Questions. Naval Historical Center, U.S. Navy. Archived from the original on 29 January 2007. Retrieved 28 January 2007.
"Petty Officer responsibility". Military Requirements for Petty Officers Third and Second Class. Integrated Publishing. Archived from the original on 13 July 2007. Retrieved 27 January 2007.
"Petty Officer responsibility". Military Requirements for Petty Officers Third and Second Class. Integrated Publishing. Archived from the original on 13 July 2007. Retrieved 27 January 2007.
"Rate/Rank Insignia"(PDF). United States Navy Uniform Regulations. BUPERS, U. S. Navy. Archived from the original(PDF) on 4 July 2007. Retrieved 27 January 2007.
"Chief Petty Officer". Frequently Asked Questions. Naval Historical Center, U.S. Navy. Archived from the original on 29 January 2007. Retrieved 28 January 2007.
"Enlisted Rate/Rating Insignia". United States Navy Uniform Regulations CPO Rating. BUPERS, U. S. Navy. Archived from the original on 6 December 2006. Retrieved 26 January 2007.