190814-N-GI385-0039 KINGS BAY, Ga., (Aug. 14, 2019) Culinary Specialist (Submarine) 1st Class Devon Dumas tries on a chief's service dress blue coat at the Navy Exchange uniform shop on Naval Submarine Base Kings Bay. Petty officers who are selected for promotion to chief petty officer go through six weeks of initiation and training to learn how to serve in their new roles as senior enlisted leaders. (U.S. Navy Photo by Mass Communication Specialist 3rd Class Aaron Xavier Saldana/Released)