A Contracting Officer appointment shall be terminated in writing when the individual is transferred from the position due to reassignment or permanent change of station/duty; the need for a contracting officer function no longer exists; the individual retires, resigns or the Agency terminates his/her employment; or the individual fails to comply with laws and regulations governing the procurement process, including the delegated warrant authority and responsibilities. Warrants issued specifically for a contingency operation are only valid for the period during which the individual is assigned to support the contingency office and shall be terminated in writing upon

detachment from that office. HCAs shall keep a copy of each terminated warrant for the period identified in 5204.805(c) beyond the date of termination.