: Details the Public Key Infrastructure (PKI) used to digitally sign and protect biometric data from tampering.
: Defines the layout and OCR-B font used for the printed data lines at the bottom of identity pages. Download lis na9303 pdf
As of 2026, the standard is transitioning from older ISO/IEC 19794 biometric encoding to the newer standard. All inspection systems are required to support this new data format by January 1, 2026. Doc 9303 Machine Readable Travel Documents - ICAO : Details the Public Key Infrastructure (PKI) used
Doc 9303 establishes the international specifications for the design, security, and interoperability of travel documents. It ensures that a passport issued by one country can be read and authenticated by border systems worldwide. Key Components of the Standard Download lis na9303 pdf