Rev. Proc. 2011-49, 2011-44 I.R.B. 608
Internal Revenue Bulletin 2011-52 · 2026-10-03 edition · updated 2026-10-04 · United States
2006-24
Modified by
Ann. 2011-77, 2011-51 I.R.B. 874
2006-56
Modified and amplified by
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