what are the ranks in the coast guard?

Answer 1

Same as the U.S. Navy's. For officers: Admiral, Vice Adm, Rear Adm.[upper half] Rear adm.[lower half],Captain, Commander, Lt. Commander, Lieutenant, Lieutenant [junior grade], Ensign

For Enlisted: Seaman 1, Seaman 11, Seaman 111, Petty officer 1, Petty officer 2, Petty officer 3, Chief Petty Officer, Mstr. Chief P.O., Sr. Mst. Chief P.O.