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• Organization: Social Security Administration
• Dataset Last Updated: September 22, 2026

Each year the Office of Personnel Management (OPM) sends SSA a file to be verified and matched against the Master Earnings File (MEF) and Employer Information File (EIF). OPM will match SSA's tax...

• Organization: Social Security Administration
• Dataset Last Updated: September 22, 2026

GECALC - The RRB sends an annual file to SSA requesting information on railroad workers with an SSN ending in a specific two-digit value for a designated year. SSA provides RRB with the requested...