US Passport Card Application Process
The US Passport Card application must be filled out by yourself. You need to be a citizen of the United States to apply for a US Passport Card. You may apply if you have a regular passport, but you can also follow the passport card application process if you do not have a regular passport. You do not need to apply for a US Passport Card if you travel internationally if you already have a regular passport. But you might want to apply for a passport card anyway if you travel frequently by land or sea to and from Mexico, Canada, Bermuda or the Caribbean because the passport card is wallet size, which makes it more convenient to carry than a regular passport.