ISO 14025: Type III Environmental Declarations (Environmental Product Declarations)

Introduction

ISO 14025, Environmental labels and declarations — Type III environmental declarations — Principles and procedures, is part of the ISO 14000 family of environmental management standards. It provides the framework for producing and using Environmental Product Declarations (EPDs): standardized documents that communicate detailed quantitative environmental information about a product over its life cycle based on Life Cycle Assessment (LCA). This includes data ranging from resource use and emissions to waste generation, presented in a consistent format that allows credible comparison among products with equivalent functions.

The standard is designed to ensure that EPDs are transparent, scientifically robust, and verifiable, so they can be trusted by specifiers, buyers, regulators, and other stakeholders. It builds on ISO 14020 principles and ties closely to LCA standards like ISO 14040 and ISO 14044.

What ISO 14025 asks

ISO 14025 does not prescribe how to conduct an LCA itself, but it sets rules for credible Type III environmental declarations — the EPDs used in many sustainability frameworks. At its core, the standard expects the following:

• Life-cycle basis: A Type III environmental declaration must be grounded in a Life Cycle Assessment (LCA) that covers the product’s full life cycle, consistent with ISO 14040 and ISO 14044 series.

• Product category rules (PCRs): EPDs must be developed according to predetermined PCRs, which define functional units, system boundaries, data quality, and reporting formats for a specific product category.

• Independence and verification: Data in a Type III declaration must be independently verified by a program operator or third party to ensure accuracy, transparency, and credibility.

• Quantified environmental information: The declaration must present quantitative environmental data across relevant impact categories (e.g., energy use, emissions, waste), enabling comparisons within a category without judging whether a product is “good” or “bad.”

• Transparency and comparability: ISO 14025 requires that declarations be clear and comparable, enabling stakeholders—especially business-to-business users—to assess products on a like-for-like basis.

In essence, ISO 14025 turns raw LCA data into a standardized, credible report format (an EPD) that stakeholders can use with confidence.

Status & Outlook

ISO 14025:2006 is the current, published version of the standard and continues to guide how Type III environmental declarations are produced worldwide. Although a revision (ISO/DIS 14025) is in development, the 2006 edition remains active and widely referenced in procurement requirements, building certification programmes, green standards, and supply-chain transparency initiatives.

EPDs aligned with ISO 14025 are now increasingly required—not just voluntary—in green building codes, public and private procurement policies, and embodied-carbon reporting frameworks, reflecting growing demand for transparent environmental data. Their adoption supports market credibility and helps organisations meet sustainability goals.

Resources

• ISO 14025:2006 – Environmental labels and declarations — Type III environmental declarations (ISO.org official).

• Guide to ISO 14025 and EPDs (SafetyCulture).

• What is ISO 14025? (Decerna knowledge base).

• ISO 14025 principles and procedures summary (SETsafe).