IEC International ISO Standard IS0/IEC18974 Information technology - First edition OpenChain security assurance 2023-12 specification Referencenumber ISO/IEC 18974:2023(en) ISO/IEC 2023 IS0/IEC 18974:2023(en) COPYRIGHT PROTECTED DOCUMENT @ IS0/IEC2023 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 401 · 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 2023 - All rights reserved ii