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Abbreviations

Rev. Proc. 2010-44, 2010-49 I.R.B. 811

Internal Revenue Bulletin 2010-50 · 2026-10-03 edition · updated 2026-10-04 · United States

T.D. 9504, 2010-47 I.R.B. 670

2009-18

Obsoleted in part by

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▸Contents — Internal Revenue Bulletin 2010-50

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