SECTION 1. PURPOSE
Internal Revenue Bulletin 2006-11 · 2026-10-03 edition · updated 2026-10-04 · United States
This notice sets forth a process under which an eligible contractor who constructs a dwelling unit (other than a manufactured home) may obtain a certification that the dwelling unit is an energy efficient home that satisfies the requirements of § 45L(c)(1)(A) and (B) of the Internal Revenue Code. This notice also provides for a public list of software programs that may be used in calculating energy consumption for purposes of obtaining a certification that satisfies the requirements of § 45L(d). Guidance relating to manufactured homes will be provided in a separate notice.
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