9 C.F.R. § 417.3
(a) The written HACCP plan shall identify the corrective action to be followed in response to a deviation from a critical limit. The HACCP plan shall describe the corrective action to be taken, and assign responsibility for taking corrective action, to ensure:
(b) If a deviation not covered by a specified corrective action occurs, or if another unforeseen hazard arises, the establishment shall: