Also often called the Quartermaster (CONN/Flight Control), like the Second Officer title above, this is not a stand alone position. The senior most Chief Petty Officer (including Senior and Master Chiefs), regardless of rating, is designated by the Commanding Officer as the Chief of the Boat (for vessels) or Command Chief (for starbases). In addition to his or her departmental responsibilities, the COB/CC performs the following duties: serves as a liaison between the Commanding Officer (or Executive Officer) and the enlisted crewmen; ensures enlisted crews understand Command policies; advises the Commanding Officer and Executive Officer regarding enlisted morale, and evaluates the quality of noncommissioned officer leadership, management, and supervisory training.
The COB/CC works with the other department heads, Chiefs, supervisors, and crewmen to ensure discipline is equitably maintained, and the welfare, morale, and health needs of the enlisted personnel are met. The COB/CC is qualified to temporarily act as Commanding or Executive Officer if so ordered.
A Senior Chief Petty Officer may be called a Senior Chief of the Boat (SCOB) or Command Senior Chief (CSC). A Master Chief Petty Officer may be called a Master Chief of the Boat (MCOB) or Command Master Chief (CMC).
