IEC IEC 63372 Edition 1.02026-01 INTERNATIONAL STANDARD Quantification and communication of carbon footprint, GHG emission reductions and avoided emissions from electric and electronic products and systems - Principles, methodologies, requirements and guidance IEC 63372:2026-01(en) ICS 13.020.01; 29.100 ISBN 978-2-8327-0998-6 THIS PUBLICATIONIS COPYRIGHTPROTECTED Copyright@2026 IEC,Geneva,Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or IEc or IEC's member National Committee in the country of the requester. If you have any questions about IEC copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or your local IEC memberNational Committee for further information. IEC Secretariat Tel.: +41 22 919 02 11 3, rue de Varembé [email protected] CH-1211 Geneva 20 www.iec.ch Switzerland About the IEC International Standards for all electrical, electronic and related technologies. About IECpublications The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the latest edition, a corrigendum or an amendment might have been published. IECpublications search- IEcProducts&Services Portal-products.iec.ch webstore.iec.ch/advsearchform Discover our powerful search engine and read freely all the The advanced search enables to find IEC publications by a publications previews, graphical symbols and the glossary. variety. of criteria (reference number, text, technical With a subscription you wili always have access to up to date committee, ...). It also gives information on projects, content tailored to your needs. replaced and withdrawn publications. Electropedia -www.electropedia.org IEC JustPublished-webstore.iec.ch/justpublished The world's leading online dictionary on electrotechnology, Stay up to date on all new IEC publications. Just Published containing more than 22 500 terminological entries in English details all new publications released. Available online and and French, with equivalent terms in 25 additional languages. once a month by email. Also known as the international Electrotechnical Vocabulary (IEV) online. IEC Customer Service Centre -webstore.iec.ch/csc If you wish to give us your feedback on this publication or need further assistance, please contact the Customer Service Centre: [email protected]. Warning! Make sure that you obtained this publication from an authorized distributor. IEC63372:2026@IEC2026 CONTENTS FOREWORD 4 INTRODUCTION. 6 1 Scope.. 2 Normativereferences.. 3 Terms,definitions,and abbreviated terms 3.1 Terms related to greenhouse gas... 3.2 Terms relating to quantification of carbon footprint (GHG emissions and GHG removals)..... 9 3.3 Terms related to quantification of GHG emission reductions and avoided emissions. .14 3.4 Terms related to life cycle assessment. 3.5 Terms related to organizations and interested parties. .18 3.6 Terms related to verification and validation. .18 3.7 Abbreviatedterms. .19 4 Principles 19 4.1 General.. ..19 4.2 Life cycle thinking (LCT) . ..19 4.3 Relevance. 4.4 Completeness. .19 4.5 Consistency. .19 4.6 Accuracy. .19 4.7 Transparency. .20 4.8 Conservativeness ..20 4.9 Priority of scientific approach... 4.10 Avoidance of double counting 4.11 Separate reporting .. ..20 5 Strategy to achieving a low-carbon society 5.1 General....... 5.2 Systematic approach to low carbon society. 6 Quantification ... 6.1 Carbon footprint of a product quantification.. .22 6.1.1 General..... 6.1.2 Step 1-Goal and scope of CFP quantification.. 6.1.3 Step 2 - Functional or declared unit .. ..23 6.1.4 Step3-Systemboundary of theproduct orsystem ..23 .25 6.1.5 Step4-Decision onprocessestobecut-off 6.1.6 Step 5-Data collection and quality assessment ..25 6.1.7 Step 6 -Development of scenarios... ..27 6.1.8 Allocation ..... ....29 6.1.9 Step 7-Calculating GHG emissions 6.1.10 Step8-Impact assessment forCFP orpartial