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Machine Readable Travel Documents - ICAO

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Part 3. <strong>Machine</strong> <strong>Readable</strong> Official <strong>Travel</strong> <strong>Documents</strong> � Volume 1<br />

Section III. Security of design, manufacture and issuance III-13<br />

Table III-1. Summary of security recommendations<br />

Threats Basic features Additional features<br />

Security printing – two-colour guilloche background<br />

– rainbow printing<br />

– anti-scan pattern<br />

– microprinting<br />

– intaglio printing (not normally<br />

possible on a td1 or td2)<br />

– latent image<br />

– duplex pattern<br />

– 3-D design feature<br />

– front-to-back register feature<br />

– deliberate error in microprint<br />

– tactile feature<br />

Numbering – unique document number – perforated document number<br />

– special typefonts<br />

Inks – UV inks – optically variable properties<br />

– metallic inks<br />

– penetrating numbering ink<br />

– metameric inks<br />

– infrared dropout ink<br />

– thermochromic ink<br />

– photochromic ink<br />

– infrared fluorescent ink<br />

– phosphorescent ink<br />

– tagged ink<br />

Photo-substitution – personalization integrated into the<br />

structure of the MRtd<br />

– guilloche or other security printed<br />

feature overlapping portrait<br />

– secure laminate or overlay or<br />

equivalent<br />

Alteration of the biodata – secure personalization technique<br />

– secure laminate or overlay or<br />

equivalent<br />

Falsely obtained documents – good-quality captured images<br />

– good-quality reproduction images<br />

– training of inspection staff<br />

– checks of supporting identity<br />

documents<br />

– records seach capability<br />

– register of lost and stolen<br />

documents<br />

– OVF over the portrait<br />

– embedded image<br />

– secondary portrait image<br />

– storage and retrieval system<br />

for digital portrait images<br />

– biometric feature<br />

– secondary biodata image<br />

– OVF over the biodata<br />

– biometric identifier<br />

– international cooperation<br />

– audit trail for identity checks<br />

– records of interrogation<br />

system<br />

– national ID database

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