What type of document is a Social Security card classified as?

A Social Security card is classified as a List C document under the I-9 verification system. List C documents contain information that demonstrates an individual's authorization to work in the United States. Specifically, the Social Security card serves as proof of a person’s Social Security number, which is necessary for employment eligibility verification.

To clarify further, List A documents verify both identity and employment authorization. List B documents verify identity only, and List C documents, like the Social Security card, confirm employment authorization. Because the Social Security card does not provide proof of identity by itself without accompanying identification (which would typically fall under List B), it fits neatly into the List C category. Therefore, any individual needing to demonstrate their legal right to work would present their Social Security card as part of the documentation required in the I-9 form process.