Standards guides / ISO 14001
Environmental managementISO 14001:2026 explained
Environmental management systems: Requirements with guidance for use
Current edition: ISO 14001:2026, the fourth edition, published by ISO on 15 April 2026. It replaces ISO 14001:2015 and its 2024 amendment, which ISO now lists as withdrawn.
Last reviewed 19 October 2026. Written by DSQA Consultants in our own words. This guide doesn't reproduce the standard.
What ISO 14001 is
ISO 14001 sets out what an environmental management system needs so that an organisation can manage its environmental aspects, meet its compliance obligations and improve its environmental performance over time. It suits organisations of any size and sector.
What changed in ISO 14001:2026
- A wider set of environmental conditions, such as pollution, resource availability, climate change, biodiversity and ecosystem health, should be considered when looking at context and interested parties (clauses 4.1 and 4.2).
- Risks and opportunities get their own clause (6.1.4), separate from environmental aspects and compliance obligations.
- A new clause on planning changes to the system (6.3).
- Operational control now covers externally provided processes, products and services, not just outsourced processes (clause 8.1).
- Internal audit and management review are more structured, with management review split into general, inputs and outputs (9.3.1 to 9.3.3).
- Continual improvement is brought together in clause 10.1, and the life cycle perspective is clarified.
- Annex A guidance has been expanded.
The overall structure, the life cycle perspective, risk-based thinking and continual improvement stay. Existing ISO 14001:2015 systems remain a sound starting point.
Transition timeline for certified organisations
- From 31 October 2027, new and initial certificates can only be issued to ISO 14001:2026.
- Organisations certified to ISO 14001:2015 have until 30 April 2029 to move to the 2026 edition.
- Your certification body will confirm how and when it will assess your transition.
Clause-by-clause summary
Like other ISO management system standards, ISO 14001 follows the Harmonized Structure. Clauses 1 to 3 cover scope, references and terms. The requirements are in clauses 4 to 10, summarised below in our own words.
4 Context of the organization
Understand the environmental conditions and other issues that affect you and that you affect, identify interested parties and which of their needs become compliance obligations, and set the scope of the system.
5 Leadership
Top management takes visible ownership of environmental performance, sets an environmental policy that fits the organisation's direction and assigns clear roles.
6 Planning
Identify your environmental aspects and the significant ones from a life cycle perspective, record your compliance obligations, decide which risks and opportunities to act on, set environmental objectives and plan changes.
7 Support
Provide resources, make sure people are competent and aware, plan internal and external communication and control your documented information.
8 Operation
Control the operations linked to your significant aspects, including work done by external providers, and be ready to respond to environmental emergencies.
9 Performance evaluation
Monitor and measure environmental performance, evaluate whether you meet your compliance obligations, run a documented internal audit programme and hold structured management reviews.
10 Improvement
Deal with nonconformities and their causes, and keep improving the system and your environmental performance.
Documented information you'll usually need
The standard expects you to keep certain information documented (maintained) or as records (retained). This is our summary of what's commonly expected. Check it against your own copy of the standard, and add anything else your organisation needs to run the system well.
- Scope of the environmental management system
- Environmental policy
- Risks and opportunities that need to be addressed, and the processes for them
- Environmental aspects, their impacts and the criteria used to decide which are significant
- Significant environmental aspects
- Compliance obligations
- Environmental objectives and plans to achieve them
- Evidence of competence
- Evidence of communication, where required
- Information needed to be confident that operational processes ran as planned
- Emergency preparedness and response processes
- Monitoring, measurement, analysis and evaluation results
- Evidence of calibration or verification of monitoring equipment
- Results of evaluating compliance
- Internal audit programme and audit results
- Results of management reviews
- Nonconformities, corrective actions and their results
How certification works
Certification is optional. If you want it, an independent certification body audits your management system and decides whether to issue a certificate. In the UK, check that the certification body holds UKAS accreditation for ISO 14001.
DSQA Consultants isn't a certification body and doesn't issue certificates. Our toolkits and virtual support help you prepare for certification.