Related Clues:

• IRS form IDs
• Nine-digit I.D.s
• Hacking targets, for short
• Form W-9 figs
• IDs for the IRS
• Honor roll stats
• Means for coll. students
• IDs on tax returns
• XXX-XX-XXXX nos
• 'Last four' ID verifiers
• "Last four" ID verifiers
• Data since the FDR era
• Two-hyphen IDs
• Some Form 1040 data, for short
• Some I.R.S. data, for short