# Energy Efficiency (IBC 2009 Chapter 13) > This chapter establishes requirements for the energy-efficient design and construction of buildings. - Canonical: https://harth.build/resources/building-codes/us-states/north-dakota/ibc-2009/energy-efficiency/ ## Direct answer and reference scope Energy Efficiency (IBC 2009 Chapter 13) is presented here as a reference within the IBC 2009 collection for North Dakota. This chapter establishes requirements for the energy-efficient design and construction of buildings. Use the [North Dakota Department of Commerce](https://www.commerce.nd.gov/community-services/building-codes) to confirm the code edition currently adopted for the project, and compare the model text with state amendments, local amendments, effective dates and the permit authority's interpretation. The [ICC code library](https://codes.iccsafe.org/codes) is the model-code publication path. This Harth page is a searchable reference transcription, not an official code publication, legal opinion or confirmation that this edition controls a particular address. Record the project jurisdiction, application date, occupancy, construction type and amendment set before relying on a section. Where this page conflicts with an official publication or the authority having jurisdiction, the official source controls. This duplicate source record is retained for route compatibility, marked noindex, and canonicalized to [/building-codes/us-states/maryland/ibc-2009/energy-efficiency](https://harth.build/resources/building-codes/us-states/maryland/ibc-2009/energy-efficiency.md). _Authored and prepared by Harth. Review scope: official verification path added; code text and current local applicability have not been independently reviewed._ _This chapter establishes requirements for the energy-efficient design and construction of buildings._ ## 1301 — General 1301.1 Scope. This chapter governs the design and construction of buildings for energy efficiency. > 1301.1.1 Criteria. Buildings shall be designed and constructed in accordance with the International Energy Conservation Code. 1301.1.1 Criteria. Buildings shall be designed and constructed in accordance with the International Energy Conservation Code. ## Frequently asked questions ### What is the primary purpose of IBC Chapter 13? IBC Chapter 13 sets forth the minimum requirements for energy efficiency in the design and construction of buildings. ### Which building projects are subject to the energy efficiency requirements of this chapter? This chapter governs all new building designs and constructions regarding energy efficiency. --- - Continue in Harth (open this topic in the Harth agent): https://app.harth.build/agent?context=%2Fresources%2Fbuilding-codes%2Fus-states%2Fnorth-dakota%2Fibc-2009%2Fenergy-efficiency%2F - View this page in a browser: https://harth.build/resources/building-codes/us-states/north-dakota/ibc-2009/energy-efficiency/ - All resources for agents: https://harth.build/llms.txt