# 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/maryland/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 Maryland. This chapter establishes requirements for the energy-efficient design and construction of buildings. Use the [Maryland Building Codes Administration](https://labor.maryland.gov/labor/build/buildstatecodes.shtml) 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. _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. ![Labeled code-chapter diagram: Energy Efficiency (IBC 2009 Chapter 13)](https://efwwel0vyt9vy5so.public.blob.vercel-storage.com/images/building-codes/us-states/maryland/ibc-2009/energy-efficiency/diagram-1344.webp) *This chapter establishes requirements for the energy-efficient design and construction of buildings.* ## 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%2Fmaryland%2Fibc-2009%2Fenergy-efficiency%2F - View this page in a browser: https://harth.build/resources/building-codes/us-states/maryland/ibc-2009/energy-efficiency/ - All resources for agents: https://harth.build/llms.txt