Building Energy Codes Program

Skyline of Honolulu
Photo courtesy of NREL

An estimated 75% of U.S. buildings will be new or renovated by 2035. Building energy codes ensure they use energy efficiently and reduce energy costs over the life of the building.

The Building Technologies Office (BTO) is directed by statute to support the development of model energy codes and provide technical assistance to states and municipalities that ultimately adopt and implement building codes. In addition, the U.S. Department of Energy (DOE) is directed to establish minimum energy efficiency standards for new and significantly renovated federal buildings. These activities help establish minimum standards for building energy efficiency and performance, and lower energy costs for American homes and businesses.  

Learn more about BTO’s activities supporting building energy codes at energycodes.gov

The Building Energy Codes Program

  • Coordinates with stakeholders to improve energy codes, including builders, trades, architects, engineers, building officials, and a variety of other energy professionals.
  • Provides technical assistance, including a variety of educational and training resources and tools to support effective energy code implementation and reduce compliance burden across states and local jurisdictions.
  • Reviews updated model energy codes, such as the International Energy Conservation Code and ASHRAE Standard 90.1, to ensure energy efficiency and performance.
  • Tracks the status of energy code adoption across the United States and assesses the savings impacts of model energy codes, calculating energy costs and other impacts.
  • Administers a help desk to assist practitioners with questions about energy codes.

Learn more about saving energy and money with building energy codes in the United States.

DOE Energy Codes Website

EnergyCodes.gov