International IEC ISO Standard ISO/IEC21031 First Information technology Software Carbon Intensity (SCI) specification edition 2024-03 Technologies de I'information - Spécification relative a l'intensité carbone logicielle Reference number ISO/IEC 21031:2024(en) @ ISO/IEC 2024 IS0/IEC 21031:2024(en) COPYRIGHT PROTECTED DOCUMENT IS0/IEC2024 All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below orIso'smemberbodyinthecountryoftherequester. ISo copyright office CP 40i: Ch.de Blandonnet 8 CH-1214 Vernier, Geneva Phone: +41 22 749 01 11 Email: [email protected] Website: www.iso.org Published in Switzerland @IS0/IEC 2024 - All rights reserved ii