Below is detailed information regarding the 2021 update of ISO 21500, its contents, scope, and availability.
ISO 21502 covers single projects . ISO 21503 covers programme management (multiple related projects). Both were updated in 2020/2021.
ISO standards are copyrighted documents. They cannot be shared as free PDF files legally. To obtain the official PDF of ISO 21502:2021, you must purchase it from the ISO Store or your national standards body (e.g., ANSI, BSI, DIN). Be cautious of unofficial "free" PDFs found online, as they may be outdated drafts or contain malware.