Related Clues:

• ID nos.
• Workers need them (Abbr.)
• ID data
• Data for HR managers
• Certain IDs
• Employee IDs, at times
• IRS data
• Personal figs.
• Some personal data: Abbr.
• FICA IDs
• Workers' IDs
• They have nine digits and two hyphens, briefly
• Personnel data, briefly
• Tax-form IDs
• Credit application figs.