Skip to content
ChatProjectCodes

Abbreviations

Rev. Proc. 2009-21, 2009-16 I.R.B. 860

Internal Revenue Bulletin 2009-23 · 2026-10-03 edition · updated 2026-10-04 · United States

2008-68

Amplified and superseded by

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

Ask AI about this code
Export this section
▸Contents — Internal Revenue Bulletin 2009-23
Internal Revenue Bulletin 2009-23

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.