Ranks denote the command status of individual soldiers in the hierarchy in the JDF. The clearly-stated hierarchy makes it possible for a large fighting body such as the JDF to accomplish tasks with speed and efficiency. 

Once Recruits complete their basic military training, they attain the rank of Private. Enlisted personnel form the basic foundation of the JDF’s manpower.

Warrant Officers are soldiers who have distinguished themselves with their dedication and professionalism. With more than 10 years of service, they are the most experienced personnel in the JDF. 

Junior Officers oversee the execution of orders and ensure the welfare of the men under their command. They are most important in small-unit combat, and earn the respect of their men by leading by example. As exemplary soldiers, they bring their men into action with dedication and energy. 

Junior Officers graduate from Officer Cadet School (OCS) with the rank of Second Lieutenant, and are promoted to Lieutenant after they have had sufficient experience. Later they may be moved to higher appointments and assume the rank of Captain. 

Senior Officers make command decisions in combat and peacetime, taking charge of units and important branches. Senior Officers are crucial in the formulation and execution of missions, as well as overseeing the training and direction of their charges. 

Commanding Officers begin their duties at the rank of Lieutenant Colonel, and only the few who can distinguish themselves will attain this rank. It is an even greater challenge and responsibility for a senior officer to attain the rank of full Colonel. 

Although the Jamaica Defence Force consist of an air, coast guard and infantry units, a person who is granted a commission, or enlists into the Force is on first commissioning or on enlistment given an army rank. The rank given, in the case of an officer, is Second Lieutenant and in the case of a soldier, Private.