Where Can You Use a US Passport Card? What You Need to Know About It The US Passport Card, a convenient and cost-effective alternative to the traditional passport book, offers a streamlined way to travel within North America. However, its applicability is limited compared to the  passport book , and understanding its restrictions is crucial before relying on it for international travel. This paper will delve into the specific situations where a passport card can be used, as well as provide essential information about its limitations and requirements. What is a US Passport Card? The US Passport Card is a wallet-sized document that serves as identification for US citizens traveling by land or sea to Canada, Mexico, Bermuda, and the Caribbean. Unlike the passport book, it cannot be used for international air travel. It is a valid form of identification for returning US citizens when entering the country through land or sea ports of entry. Where Can You Use a US Passport Card? The primar