Following the Hamoodur Rahman Commission, the Joint Chiefs of Staff Committee does not have operational command authority. Instead, the Joint Chief of Staff Committee is a principal military advisory body, and coordinates command operations between the services. The committee is headed by the four-star officer who is designated as the Chairman Joint Chiefs of Staff Committee (CJCSC). The chairman is the de Jure Commander in chief of all services of the Pakistan Armed Forces, but he does not have operational authority over combatant forces, which report directly to their Chiefs of Staff.