Standard · Standards & Organisations

ISO 14001

The international standard for environmental management systems, setting out how an organisation identifies its environmental aspects, meets legal obligations and improves performance.

Fabs, assembly sites and their customers commonly require it.

Type: Standard
Domain: Standards & Organisations, Compliance & regulation

Overview

ISO 14001 is the international standard that sets the requirements for an environmental management system, the structured way an organisation identifies its environmental impacts, meets its legal obligations and improves its environmental performance over time. It does not set emission limits; it defines how environmental responsibilities are planned, carried out, checked and reviewed. The current edition is ISO 14001:2026, published in April 2026 and replacing the 2015 edition.

How it works

ISO 14001 follows the plan, do, check and act logic of ISO management system standards and shares their common high-level structure, so it can be run alongside quality, health and safety and energy management systems. An organisation typically defines the scope of its system, identifies its environmental aspects, such as energy and resource use, emissions and waste, and the legal requirements that apply, and sets objectives to address the most significant ones. It then puts controls and responsibilities in place, monitors its environmental performance, audits the system internally and reviews it at management level, correcting problems and improving over time.

An organisation can declare conformity itself, but many seek certification from an independent third-party certification body. Certified organisations usually face surveillance audits every year and a full recertification audit every three years. Certification is carried out by these bodies, not by ISO.

The 2026 fourth edition keeps the established framework but improves clarity and structure and strengthens alignment with current priorities such as climate change, biodiversity and resource efficiency. Organisations certified to the 2015 edition move to the new edition under transition arrangements agreed with their certification bodies.

Examples

TSMC's fab in Camas, Washington, certified to ISO 14001 for semiconductor manufacturing by an independent certification body, with certification first granted in 2001.
TSMC announcing in 2002 that Phase 1 of its Fab 12 had achieved ISO 14001 certification alongside occupational safety and fire safety certificates.
A fab's significant environmental aspects register listing process gas emissions, ultrapure water use and chemical waste, each with controls and objectives.
A supplier questionnaire from an automotive customer asking for the ISO 14001 certificate of each wafer fab and assembly site.

Why it matters

Fabs and assembly sites use large amounts of energy, water, chemicals and process gases, so they need a disciplined way to control environmental risk and prove it. Environmental management system specialists, fab environmental compliance engineers and EHS teams run the system, and customers often ask suppliers for the certificates of their manufacturing sites.

In the chip lifecycle, ISO 14001 applies mainly to manufacturing: wafer fabrication, assembly and test, and the facilities and utilities that support them.

It matters most to: Environmental Compliance Engineer, Fab, Environmental Management System Specialist, Fab EHS Engineer, Semiconductor Sustainability Program Manager

Common confusions

Not the same as EMAS: The EU Eco-Management and Audit Scheme is an EU environmental management framework with more prescriptive requirements, including a published environmental statement and third-party validation. ISO 14001 applies worldwide.
Not the same as an environmental performance standard: ISO 14001 sets requirements for a management system, not limits on emissions or resource use. Two certified sites can have very different environmental performance.
Not the same as ISO 50001: ISO 50001 sets requirements for an energy management system. Energy use is one environmental aspect under ISO 14001, but ISO 50001 goes into energy performance in more depth, and the two are often run together.

Related standards

ISO 45001 (occupational health and safety management systems)
ISO 50001 (energy management systems)

Sources

Part of the Standards & Organisations glossary, with every term in the topic and the lifecycles, tools and standards that use them.

Where it appears on the Hub

Used on 5 pages of the Hub. In each group, the pages that mention it most come first.

Roles

Environmental Management System Specialist

Skills

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Last reviewed 22 October 2026. Written by The Semiconductor Hub editorial team. The full glossary