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bulletin Internal Revenue›Rev. Proc. 90-63, 1990-2 C.B. 664, is

SECTION 7. AUDIT PROTECTION

Internal Revenue Bulletin 1997-33 · 2026-10-03 edition · updated 2026-10-04 · United States

FOR TAXABLE YEARS PRIOR TO YEAR OF CHANGE . . . . . . . . . . . . . 25

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▸Contents — Internal Revenue Bulletin 1997-33
Internal Revenue Bulletin 1997-33

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