Senior Chief Petty Officer followed by Master Chief Petty Officer.

Master Chief Petty Officer of the Navy Rick D. West .

A chief petty officer is a US Navy or Coast Guard non-commissioned officer of the grade E-7, E-8, or E-9.

E-7: Chief Petty Officer

E-8: Senior Chief Petty Officer

E-9: Master Chief Petty Officer

E-9 also can be a Command Master Chief (CMC) of the Master Chief Petty Officer of the Navy (MCPON) which is assigned to the highest ranking enlisted person in the United States Navy.

The U.S. Navy has many different ranks. These ranks include Seaman Recruit, Seaman Apprentice, Seaman, Petty Officer 3rd Class, Petty Officer 2nd Class, Petty Officer 1st Class, Chief Petty Officer, Senior Chief Petty Officer, Master Chief Petty Officer, Fleet and Commander Master Chief Petty Officer, Chief Warrant Officer 2, Chief Warrant Officer 3, Chief Warrant Officer 4, Chief Warrant Officer 5, Ensign, Lieutenant Junior Grade, Lieutenant, Lieutenant Commander, Commander, Captain, Rear Admiral, Vice Admiral, Admiral Chief of Navy Ops, and Fleet Admiral.

Master Chief Petty Officer of the Navy