The Chief of the Air Staff of the Pakistan Air Force, abbreviated as CAS, is typically the highest ranking 4-star rank officer in the Pakistan Air Force, unless a four-star officer is appointed as the Chairman of the Joint Chiefs of Staff Committee. The CAS is a senior and permanent member of the Joint Chiefs of Staff Committee. The CAS heads the Air Staff of the Air Force and reports directly to the President of Pakistan and Prime Minister of Pakistan. Under the authority of the President, the CAS is responsible for the organization, training, and equipping of Reserve and civilian forces serving in the Pakistan Air Force and overseas. The CAS also allocates Air Force personnel and resources to the subordinate commanders of the Air Force. Constitutionally, the CAS is subordinated to the President and the Prime Minister and reports directly to the civilian leadership.