: Details the Public Key Infrastructure (PKI) used to digitally sign and protect biometric data from tampering.
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 Download lis na9303 pdf
: Defines the layout and OCR-B font used for the printed data lines at the bottom of identity pages. : Details the Public Key Infrastructure (PKI) used
The document is divided into several parts, each covering specific technical requirements: each covering specific technical requirements: