Rev. Proc. 2006-1, 2006-1 I.R.B. 1
Internal Revenue Bulletin 2006-4 · 2026-10-03 edition · updated 2026-10-04 · United States
Rev. Proc. 2006-3, 2006-1 I.R.B. 122
Revenue Rulings:
74-503
Revoked by
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