To get a replacement Social Security card, you will need to follow these steps:

1. Fill out the Application for a Social Security Card (Form SS-5) .
2. Gather the required documents to prove your identity, age, and citizenship or lawful work-authorized immigration status. You will need at least one document to prove your identity, and if you were born outside the U.S., you will also need to provide documents to prove your U.S. citizenship or current lawful, work-authorized status.
3. Bring the completed application and required documents to your local Social Security office.

Its important to note that you can only use original documents or copies certified by the issuing agency, and photocopies or notarized copies are not accepted. Additionally, if you dont need a card right away and you know your Social Security number, you may not need to replace your card.