3.2.15 Energy Efficiency
HUD Multifamily Accelerated Processing (MAP) Guide, HUD Handbook 4430.G (2020 ed., rev. Mar. 19, 2021) · 2026 edition · updated 2026-10-05 · United States
A. New construction projects must comply with the International Energy Conservation Code (IECC) for buildings of up to three stories, or in the case of buildings over three stories, American Society of Heating, Refrigeration and Air-conditioning Engineers, ASHRAE Standard 90.1 as adopted by HUD (see Chapter 6, Section 6.1.1). Substantial rehabilitation projects must conform to these energy codes except where compliance is not feasible due to required preservation of historic buildings or elements of historic
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Chapter 3 Programs 3.3 Section 221(d)(4)–New Construction and Substantial Rehabilitation
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buildings. Incentives for improved building performance (i.e. reduced utility consumption) are available as described in Chapter 6, Section 6.1.2.
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