bulletin Internal Revenue›Introduction
SECTION 1. GENERAL
Internal Revenue Bulletin 1999-49 · 2026-10-03 edition · updated 2026-10-04 · United States
SECTION 2. TAPE SPECIFICATIONS SECTION 3. 3 1 ⁄2-INCH DISKETTE SPECIFICATIONS SECTION 4. TAPE CARTRIDGE SPECIFICATIONS SECTION 5 8MM, 4MM and QUARTER INCH CARTRIDGE SPECIFICATIONS SECTION 6. ELECTRONIC FILING SPECIFICATIONS SECTION 7. FORM W-4 RECORD FORMAT AND RECORD LAYOUT SECTION 8. EFFECT ON OTHER DOCUMENTS SECTION 9. EFFECTIVE DATE
PART A. GENERAL
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