# Social Security Number

## Full Formal Attribute Name

gfipm:2.0:user:SocialSecurityNumber

## Abbreviated Formal Attribute Name

SocialSecurityNumber

## Definition

A unique reference assigned to the user by the United States Social Security Administration.

## Data Type

Text

## Metadata Version

2.0

## Usage Information

SSNs must be expressed in the "XXX-XX-XXXX" format.

## Example Content

None Provided

## NIEM Xpath

nc:Person/nc:PersonSSNIdentification

## NIEM Definition

A unique reference to a living person; assigned by the United States Social Security Administration.

## Source

GFIPM Metadata Straw Man

## Misc. Notes

None Provided