This part of ISO/IEC 19785 specifies the procedures to be followed by the Biometric Registration Authority in preparing, maintaining, and publishing registers of identifiers for biometric organizations, CBEFF patron formats, BDB formats, security block formats, and biometric products.EC 19785-3:2015), which has been technically revised. The main changes compared to the previous edition are as follows: — Vocabulary and technical updates and corrections. — Specification of new CBEFF patron formats for BioAPI 2.0, Presentation Attack Detection (PAD), new TLV-encoded patron format for ICCs or other tokens (with explicit tag allocation authority), and Self-identifying Tag-oriented simple and complex BIRs. — Inclusion of conformance requirements in Annex B and coding specification