4.5.3 Nonconformity, corrective action and preventive action
The organization shall establish, implement and maintain a procedure(s) for dealing with actual and potential nonconformity(ies) and for taking corrective action and preventive action. The procedure(s) shall define requirements for
a) identifying and correcting nonconformity(ies) and taking action(s) to mitigate their environmental impacts,
b) investigating nonconformity(ies), determining their cause(s) and taking actions in order to avoid their recurrence,
c) evaluating the need for action(s) to prevent nonconformity(ies) and implementing appropriate actions designed to avoid their occurrence,
d) recording the results of corrective action(s) and preventive action(s) taken, and
e) reviewing the effectiveness of corrective action(s) and preventive action(s) taken.
Actions taken shall be appropriate to the magnitude of the problems and the environmental impacts encountered.
The organization shall ensure that any necessary changes are made to environmental management system documentation.