Environment, Energy & OH&S
Environmental, energy and safety standards share one structure, so most organisations run them as one integrated EHS system. We help you choose the right combination, implement it and prepare for certification or verification by an independent body.
Start from what you need to manage
ISO 14001, ISO 45001 and ISO 50001 share the harmonized structure. ISO 14064-1 adds a verified greenhouse gas inventory.
Environmental aspects, compliance obligations and performance, with a three-year transition from the 2015 edition.
ISO 14001 → Health & safety ISO 45001 ISO 45001:2018 · 2027 edition comingPreventing work-related injury and ill health, with worker participation.
ISO 45001 → Energy performance ISO 50001 ISO 50001:2018Baselines, indicators and measured improvement in energy performance.
ISO 50001 → Greenhouse gas ISO 14064-1 Verification to ISO 14064-3A complete, verification-ready inventory of emissions and removals.
ISO 14064-1 →Side by side
| Standard | Manages | Output | Who decides | Typical engagement |
|---|---|---|---|---|
| ISO 14001 | Environmental aspects and compliance | Management system certificate | Accredited certification body | 3 to 9 months |
| ISO 45001 | OH&S hazards and risks | Management system certificate | Accredited certification body | 3 to 9 months |
| ISO 50001 | Energy performance | Management system certificate | Accredited certification body | 4 to 16 months |
| ISO 14064-1 | Greenhouse gas emissions | Verified GHG statement | Verification body accredited to ISO 14065 | 3 to 12 months |
One methodology across EHS standards
Delivered by registered lead auditors with hands-on sector experience.
- AssessGap assessment, scope and roadmap
- DesignProcesses, risks and documented information
- ImplementProcesses embedded on the ground
- TrainAwareness to internal auditor competence
- VerifyInternal audit, management review, mock audit
- Certify & sustainCertification audit support, then surveillance
Run them as one EHS system.
Combine ISO 14001, ISO 45001 and ISO 50001, with ISO 9001 if you hold it, under one policy, one risk register, one audit programme and one management review.
Environment, energy and safety training
CQI/IRCA Approved Training Partner. In-house, public, virtual or hybrid.
Environment, energy and safety FAQ
Does AEC issue these certificates?
No. ISO 14001, ISO 45001 and ISO 50001 certificates are issued by independent certification bodies accredited by UKAS, DAkkS or an equivalent national accreditation body. Greenhouse gas statements are verified by bodies accredited to ISO 14065. AEC prepares your organisation for those assessments.
What changes in 2026 and 2027?
ISO 14001:2026 was published in April 2026 with a three-year transition. ISO 45001 is being revised, with a new edition expected in 2027. ISO 50001:2018 remains current. We plan transitions so you update an integrated system once.
Can one audit cover all three standards?
Certification bodies can audit an integrated system in combined audits, which reduces audit days and disruption. We design the system so the evidence for each standard is clear.
Do we need ISO 14064-1 if we have ISO 14001?
They do different jobs. ISO 14001 manages environmental aspects; ISO 14064-1 produces a verified greenhouse gas inventory for disclosure and target setting. Many organisations run both, with shared data controls.
Plan your EHS system
Tell us your sites, activities and reporting needs. We recommend the right combination of standards and send a proposal covering implementation, training and certification support.
Certification decisions are made by independent, accredited certification bodies. AEC prepares organisations for certification and does not guarantee certification outcomes.