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Treasury Department Regulations Governing Practice before Circular No. 230 the Internal…

Publication TD CIR 230 — Regulations Governing Practice before the Internal Revenue Service · 2026-10-03 edition · updated 2026-10-04 · United States

Catalog Number 16586R www.irs.gov

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▸Contents — Publication TD CIR 230 — Regulations Governing Practice before the Internal Revenue Service

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