What design is illuminated with UV on a passport card?

The design illuminated with ultraviolet (UV) light on a passport card is the Galactic eagle. This feature enhances security by making it difficult for counterfeiters to reproduce. The UV design is part of the overall security measures incorporated into passport cards to verify authenticity and prevent fraud. When exposed to UV light, the Galactic eagle becomes visible, enabling border patrol agents and security personnel to confirm the card's legitimacy quickly. This feature, alongside other elements such as microprinting and holograms, ensures that the passport card remains a secure form of identification.