ISO/SAE INTERNATIONAL STANDARD 21434 First edition 2021-08 Road vehicles - Cybersecurity engineering vehicules routiers - Ingenierie de la cybersécurite Referencenumber SAE ISO/SAE21434:2021(E) INTERNATIONAL IS0/SAEInternational2021 Copyrigh IS0/SAE21434:2021(E) COPYRIGHTPROTECTEDDOCUMENT ISO/SAE International 2021 All rights reserved.Unless otherwise specified, or required in the context of its implementation,nopart of this publication maybe reproduced, orutilized otherwise in anyform orby anymeans,electronic ormechanical, includingphotocopying,or postingontheinternetoranintranet,withoutpriorwrittenpermission.PermissioncanberequestedfromeitherIsOorSAE InternationalattherespectiveaddressbeloworIso'smemberbodyinthecountryoftherequester. ISO copyrightoffice SAEInternational CP401Ch.de Blandonnet 8 400CommonwealthDr. CH-1214 Vernier, Geneva Warrendale, PA,USA15096 Phone:+41227490111 Phone:877-606-7323(insideUSAandCanada) Phone:+1724-776-4970(outsideUSA) Email: [email protected] Fax: 724-776-0790 Website:www.iso.org Email:[email protected] Website:www.sae.org PublishedinSwitzerlandbyISO,published intheUSAbySAEInternational IS0/SAEInternational2021-Allrightsreserved