Rev. Proc. 2011-58, 2011-50 I.R.B. 849
Internal Revenue Bulletin 2011-51 · 2026-10-03 edition · updated 2026-10-04 · United States
2010-27
Modified by
Ann. 2011-77, 2011-51 I.R.B. 874
2010-33
Superseded by
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