What is the validity period for children under 15 years regarding the passport card?

For children under 15 years of age, the validity period for a passport card is 5 years. This shorter validity compared to the 10 years typically allotted for adults reflects the fact that children's appearances change more frequently as they grow. This requirement ensures that the photograph and personal information on the passport card remain accurate and up-to-date. As children develop, updates in identification help maintain security and prevent misuse of identification documents. The 5-year validity is therefore designed to align with the developmental changes that young children experience.