• Organization: Social Security Administration
• Updated: R/P1Y

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...

• Organization: Social Security Administration
• Updated: R/P1Y

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: Millennium Challenge Corporation
• Updated: 2025-08-13T22:03:32.159Z

MCC program milestones and key information from inception (2004) including: Selection Date, Program Singing, Entry into Force (EIF), Program End, and Grant Amount.

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• Organization: Social Security Administration
• Updated: 2026-02-20

Contains information on EINs provided by the IRS.

• Organization: U.S. Department of Health & Human Services
• Updated: 2025-09-06

Background Activation of human resting T lymphocytes results in an immediate increase in protein synthesis. The increase in protein synthesis after 16–24 h has been linked to the...

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