Information card

There is more information available on this subject at Information card on the English Wikipedia.

Information cards are simple identification devices that are used to allow access to specific areas, prove someone's identity, or contain other pieces of information.

Known card types

ONI identification card

This card variant is used by ONI as identification. The cards usually feature an ONI insignia, a bar-code, and a code based on hexagons on it. Some also have a holographic image of the owner, and their CIN on it, with a chip at the back.

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  Halsey's ONI card (2552).

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  Front of Halsey's ONI card.

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  Back of Halsey's ONI card.

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  Halsey's card under natural light, partial black light, and total black light.

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  Unidentified post-war card.

UNSC deck card

This card variant ensure the crew gets all-access to the deck of a specified ship.

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  A card used to access the Infinity deck.

Spartan optic calibration card

This card is used by Spartans to ensure optics are prepared before War Games simulations.

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  Infinity Spartan optic calibration card.