International Standard
ISO/IEC 18004
Information technology — Automatic identification and data capture techniques — QR code bar code symbology specification
Reference number
ISO/IEC 18004
Edition 4
Under publication
ISO/IEC 18004
Under publication (Edition 4, 2024)
Final production steps (up to seven weeks).
Will replace ISO/IEC 18004:2015


Scope of ISO/IEC 18004 is unchanged. It is: This International Standard defines the requirements for the symbology known as QR Code. It specifies the QR Code symbology characteristics, data character encoding methods, symbol formats, dimensional characteristics, error correction rules, reference decoding algorithm, production quality requirements, and user-selectable application parameters.

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