Continual Improvement Under ISO 14001 Environmental Management
ISO 14001 Clause 10
- Continual improvement
- Nonconformity and corrective action
ISO 14001 Clause 10 - Improvement
ISO 14001:2026 Clause 10 is the final clause of the standard and covers how the environmental management system gets better over time. It has three parts: a general statement at 10.1 that the organisation determines opportunities for improvement and implements actions to achieve intended outcomes, the substantial requirement at 10.2 covering nonconformity and corrective action, and a general requirement for continual improvement at 10.3.
This article covers 10.1 and 10.2 together, treating improvement and corrective action as the linked process they are. 10.3 is covered briefly at the end.
Clause 10.1 - General
The standard requires the organisation to determine opportunities for improvement and implement actions needed to achieve intended outcomes of the EMS. This is essentially the standard saying improvement is not optional - the organisation looks for opportunities and acts on them.
Opportunities for improvement come from many places. Internal audit findings highlight gaps. Management review identifies underperforming objectives or resource shortfalls. Monitoring data shows trends. Compliance evaluation flags emerging risks. Communications from interested parties surface complaints or suggestions. The organisation pulls these inputs together and decides which improvements to pursue.
Improvement is not just about reducing environmental impacts directly. It includes improving how the EMS is structured, how decisions are made, how data is collected, how training is delivered, and how operational controls are designed. Anything that makes the system more effective at achieving its intended outcomes counts.
Clause 10.2 - Nonconformity and Corrective Action
Sub-clause 10.2 is the substantial part of Clause 10. When a nonconformity occurs - including any arising from complaints - the organisation:
- reacts to the nonconformity, and as applicable takes action to control and correct it, and deals with the consequences, including mitigating adverse environmental impacts;
- evaluates the need for action to eliminate the causes so that the nonconformity does not recur or occur elsewhere, by reviewing the nonconformity, determining its causes, and determining if similar nonconformities exist or could potentially occur;
- implements any action needed;
- reviews the effectiveness of any corrective action taken;
- makes changes to the environmental management system if necessary.
Corrective actions are appropriate to the significance of the effects of the nonconformities encountered, including environmental impacts. The organisation retains documented information as evidence of the nature of the nonconformities and any subsequent actions taken, and the results of any corrective action.
What Counts as a Nonconformity
A nonconformity is non-fulfilment of a requirement. The requirements include those of the standard itself, the organisation's own policies and procedures, and compliance obligations. Examples include a missed waste transfer note, a permit limit exceeded, a procedure not followed, an objective off track, an audit finding, or a complaint that reveals a gap in the system. Environmental incidents are typically nonconformities because they reveal a control failure or unaddressed risk.
Not every issue is a nonconformity. Performance falling within tolerance is normal variation. Continuous improvement opportunities that are not driven by a failure to meet a requirement do not necessarily need the full corrective-action process - they can flow through Clause 10.1.
Correction Versus Corrective Action
The standard distinguishes correction from corrective action. Correction is the immediate fix - clean up the spill, replace the missing waste documentation, retrain the operator. Corrective action is what is done to stop the issue happening again - changing the procedure, redesigning the equipment, adjusting the training programme, improving supervision. Both are needed but they are different activities.
Effective corrective action requires understanding the cause. A spill might be addressed by mopping it up (correction) and reminding the operator to be careful, but if the underlying cause is poor tank design or inadequate bunding, the spill will happen again. Root cause analysis is a key skill in this clause.
Clause 10.3 - Continual Improvement
The standard closes with a short statement that the organisation continually improves the suitability, adequacy and effectiveness of the EMS to enhance environmental performance. The wording mirrors the management review at Clause 9.3 and connects back to the policy commitments at Clause 5.2. Continual improvement is the running theme that makes the management system more than a static set of controls.
The biggest mistake at this clause is treating corrective action as a paperwork exercise. A nonconformity is logged, a vague action is recorded, the box is ticked, and three months later the same issue happens again because the cause was never properly addressed.
Effective corrective action means understanding why the nonconformity happened, deciding what would prevent recurrence, doing it, and checking afterwards that it actually worked. It is more time-consuming than just closing tickets, but it is the difference between a system that improves and a system that just runs on the spot.
I will trace a few nonconformities from the register. What was the immediate correction. What was the corrective action. Was a cause identified or just a generic description. Did the action address the cause. Did anyone check whether it worked. If those questions all have answers backed by records, the system is working. If they do not, this is where the system is most often weakest.
Nonconformity sounds like big language but it just means something has not gone the way the system says it should. Things going wrong are not a failure. They are information. The question is whether you fix them properly so they do not happen again. That is what this clause is about.
Practical Compliance Guidance
Nonconformities and corrective actions are recorded in a register that is reviewed regularly and feeds into management review. The IMS1 Manual sets out the nonconformity and corrective action process in Section 10.2.
The following alphaZ documents support compliance with ISO 14001:2026 Clause 10.
| alphaZ document | How to use it |
|---|---|
| ISO 9001/14001/45001 IMS Toolkit | The full set of integrated management system documents covering the requirements of all three standards, including the IMS1 Manual. |
| ER1 Issues Actions Register | Records nonconformities, the immediate correction, the corrective action, the cause analysis, the verification of effectiveness and the closure record. |
Note - all the above files can be downloaded with an alphaZ subscription.
