ALEXANDRIA, Va. (June 14, 2006) Former Master Chief Petty Officers of the Coast Guard (MCPOCG) Rick A. Trent and Vincent W. Patton, III don Master Chief Petty Officer Charles W. Bowen with a new MCPOCG dress coat and cover. Master Chief Petty Officer Charles W. Bowen relieves Master Chief Petty Officer Frank A. Welch as the 10th Master Chief Petty Officer of the Coast Guard. Coast Guard Commandant Adm. Thad W. Allen presided over the change of watch ceremony held at Coast Guard Telecommunication & Information Systems Command (TISCOM). USCG photo by PA1 Barry Lane.