Clue: Form W-9 datum: Abbr.

Answer: SSN

Length: 3

---

Similar Clues:

• Form 1040 datum: Abbr. (IRA with 3 letters)
• Tax form datum: Abbr. (SSN with 3 letters)
• Common form datum: Abbr. (SSN with 3 letters)
• Application form datum: Abbr. (TEL with 3 letters)
• Modern weapon: Abbr. (e.g. AAM with 3 letters)
• Writers' changes: Abbr. (AAS with 3 letters)
• Sports league that used a red-white-and-blue ball: Abbr. (ABA with 3 letters)
• Defunct sports league that used a red, white and blue ball: Abbr. (ABA with 3 letters)
• Shortened word form (ABBR with 4 letters)
• "Star Wars" weapon: Abbr. (ABM with 3 letters)