The two key words here are "identification" and "control." We ensure that product which does not conform to product requirements is identified and controlled to prevent its unintended use or delivery. The controls and related responsibilities and authorities for dealing with nonconforming product are defined in a documented procedure Responsibilities and authorities are defined clearly in the documented procedure for each stage of control. Records be maintained describing the nature of nonconformities along with any subsequent actions taken. Corrective action is initiated to determine and eliminate the root cause of the nonconformity, Re-verifying nonconforming products.