Skip to content
ChatProjectCodes

Introduction

SECTION 5. EFFECTIVE DATE

Internal Revenue Bulletin 2011-21 · 2026-10-03 edition · updated 2026-10-04 · United States

This revenue procedure is effective April 14, 2011.

Get a plain-English answer with a citation back to this text.

Ask AI about this code
Export this section
▸Contents — Internal Revenue Bulletin 2011-21
Internal Revenue Bulletin 2011-21

GoCodebook provides public access, search, citation, multilingual explanation, and practical interpretation of legally adopted building regulations. It is not a substitute for the official ICC or California code publications.