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U.S. Unveils More Stringent Building Code for Energy Efficiency

July 21, 2021, 3:50 PM

The Energy Department announces updated building energy codes that it says will save homes and businesses $138 billion over 30 years.

  • Agency says new codes will save 4.7% more energy for commercial buildings and 9.4% more energy for residential buildings compared to previous standards

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Ari Natter in Washington at

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Catherine Larkin

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