BS EN IEC 63366-2025 PDF

Full title and description

STB BS EN IEC 63366:2025 — Product category rules for life cycle assessment of electrical and electronic products and systems. This horizontal IEC standard defines product category rules (PCR) to support the preparation of Type III environmental declarations (EPDs) for electrical and electronic products and systems (EEPS), specifying LCA procedures, default scenarios, reporting requirements and guidance for development of product-specific rules (PSR).

Abstract

IEC 63366:2025 provides a generic set of PCR covering: life cycle assessment (LCA) requirements and boundaries for EEPS; requirements for default scenarios and data quality; structure and content of the LCA report; and guidance for creating product-specific rules (PSR) within IEC technical committees. It is intended as a horizontal reference (IEC Guide 108) for product committees and LCA practitioners preparing Type III environmental declarations.

General information

• Status: Published / Active.
• Publication date: 6 June 2025.
• Publisher: International Electrotechnical Commission (IEC); published in English/French and made available for adoption as EN IEC / BS EN IEC by regional and national bodies.
• ICS / categories: 13.020.01 — Environment and environmental protection in general.
• Edition / version: Edition 1.0 (2025).
• Number of pages: 118.

Key bibliographic and edition details are recorded on the IEC publication record and by national distributors.

Scope

This document defines PCR for electrical and electronic products and systems (EEPS) to enable consistent Type III environmental declarations. It specifies LCA methodological requirements (including system boundaries, functional unit considerations, default scenarios and data quality), the required content of LCA reports, and rules and guidance for the development of product-specific rules (PSR) by relevant IEC technical committees. It is a horizontal publication intended to be used as a starting point where no PSR exists and to be superseded by PSR where those are available.

Key topics and requirements

• Definition and structure of Product Category Rules (PCR) for EEPS.
• Mandatory LCA methodological elements: system boundaries, life cycle stages, functional unit definition and allocation rules.
• Requirements for default scenarios and how to document/justify them.
• Data quality, data sources, temporal/geographical representativeness and uncertainty reporting.
• Content and format requirements for the LCA report and Type III environmental declarations.
• Guidance and process for developing Product-Specific Rules (PSR) within IEC product committees.
• Conformance with LCA framework standards (ISO 14040 / ISO 14044) and alignment with Type III declaration principles (e.g., ISO 14025).
• Principles for comparability, review and public disclosure of EPDs derived under these PCR.

Typical use and users

Used by LCA practitioners, environmental consultants, product manufacturers of electrical and electronic equipment, sustainability and regulatory teams, ecolabel and EPD programme operators, procurement specialists, and IEC product technical committees when preparing PSR or validating EPDs for EEPS.

Related standards

Closely related to and intended to be used alongside ISO 14040 and ISO 14044 (LCA principles and requirements), ISO 14025 (Type III environmental declarations), ISO 14067 (carbon footprint of products) and IEC Guide 108 (horizontal publications). National or regional EN/BS adoptions of the IEC text are expected where applicable.

Keywords

Product category rules (PCR); life cycle assessment (LCA); electrical and electronic products and systems (EEPS); Type III environmental declaration; environmental product declaration (EPD); product-specific rules (PSR); IEC Guide 108; ISO 14040; ISO 14044.

FAQ

Q: What is this standard?

A: IEC 63366:2025 is a horizontal product category rules (PCR) standard defining LCA and reporting requirements to prepare Type III environmental declarations for electrical and electronic products and systems.

Q: What does it cover?

A: It covers the required LCA methodological elements (functional unit, system boundaries, allocation), default scenarios, data quality, LCA reporting content, and guidance for developing product-specific rules (PSR) within IEC technical committees.

Q: Who typically uses it?

A: LCA practitioners, manufacturers of electrical and electronic equipment, product technical committees, environmental consultants, EPD programme operators and procurement/sustainability teams.

Q: Is it current or superseded?

A: It is current: published 6 June 2025 (Edition 1.0). It is a horizontal IEC publication intended to remain a reference until revised or replaced; users should check for future amendments or PSR superseding its generic provisions.

Q: Is it part of a series?

A: It is a horizontal (cross-cutting) IEC publication produced under TC 111 and is intended to be used together with PSR documents produced by product-specific technical committees; it aligns with the broader LCA/EPD standards family rather than being a numbered multipart series.

Q: What are the key keywords?

A: PCR, LCA, EEPS, Type III environmental declaration, PSR, EPD, ISO 14040, ISO 14044.