Integrated Management System (IMS): ISO 9001 + 14001 + 45001
An Integrated Management System (IMS) combines two or more ISO management systems — most commonly ISO 9001 (quality), ISO 14001 (environment) and ISO 45001 (occupational health & safety) — into a single, coherent system with one set of processes, one audit programme and one management review.
Why integrate
- Less duplication — one manual, one policy, one document structure instead of three parallel systems.
- One internal audit programme and one management review covering all standards.
- A consistent approach to risk, context and interested parties across quality, environment and safety.
- Lower certification cost — combined audits take fewer auditor-days than three separate certifications.
- Clarity for staff — people follow one system, not three competing sets of rules.
The shared structure that makes it possible
All modern ISO management standards use the same Harmonized Structure (HS) — the same top-level clauses 4–10. ISO 9001:2026 and ISO 14001:2026 both kept this structure, which is exactly what makes integration efficient.
| Clause | Common to 9001 / 14001 / 45001 |
|---|---|
| 4 | Context of the organization, interested parties, scope, processes |
| 5 | Leadership, policy, roles and responsibilities |
| 6 | Actions for risks and opportunities, objectives, planning of changes |
| 7 | Resources, competence, awareness, communication, documented information |
| 8 | Operational planning and control |
| 9 | Monitoring, internal audit, management review |
| 10 | Nonconformity, corrective action, continual improvement |
What is shared vs standard-specific
The clauses above are managed once, for the whole system. On top of them, each standard keeps its own specifics: ISO 9001 — customer focus, product/service requirements and, in the 2026 edition, quality culture & ethical behaviour; ISO 14001 — environmental aspects with a life-cycle perspective, compliance obligations and, in 2026, climate change; ISO 45001 — hazard identification, worker consultation and participation, and incident investigation.
2026 editions inside an IMS
In 2026 an integrated system typically mixes editions: ISO 9001:2026 and ISO 14001:2026 are current, while ISO 45001:2018 remains in force (no 2026 edition yet). Mixing editions is completely normal — see the dedicated ISO 9001:2026 and ISO 14001:2026 transition guides.
How to build an integrated system
- Map the shared clauses and write a single integrated manual and policy.
- Build combined registers (context, interested parties, risks and opportunities) that cover all domains.
- Keep the standard-specific registers (environmental aspects, OH&S hazards) alongside.
- Run one integrated internal audit programme and one management review.
- Certify the standards together to save auditor-days.
Frequently asked questions
Can I certify ISO 9001, 14001 and 45001 at the same time?
Yes. A certification body can run a combined audit and issue certificates for each standard, usually with fewer total auditor-days than three separate audits.
Is an integrated system one certificate or three?
Usually one integrated audit but a certificate per standard. The management system is single and integrated; the certificates reference each standard.
Which editions apply in 2026?
ISO 9001:2026 and ISO 14001:2026 are the current editions; ISO 45001 remains at its 2018 edition. An IMS built today references all three.
Do you offer integrated (IMS) packages?
Yes — IMSToolkit offers integrated packages for 9001+14001, 9001+45001 and 9001+14001+45001, with a single integrated manual and policy plus the domain-specific registers, in English and Romanian.
Integrated documentation for 9001 + 14001 + 45001
IMSToolkit integrated (IMS) packages give you one integrated manual and policy plus all the registers of the included standards — aligned with the ISO 9001:2026 and ISO 14001:2026 editions, in English and Romanian.
See the IMS packages — from €77