DOE Determination: Standard 90.1 Improves Energy Efficiency 8.3%

Originally published by: U.S. Department of EnergyFebruary 21, 2018

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On February 21, 2018, DOE issued a pre-publication notice of determination that Standard 90.1-2016 would achieve greater energy efficiency in buildings subject to the code. DOE estimates national savings in commercial buildings of approximately:

  • 8.3% energy cost savings
  • 7.9% source energy savings
  • 6.8% site energy savings

Additional information related to this action, including the official Federal Register publication and docket containing public comments received, is available at

State Certification

Upon publication of an affirmative determination, States are required to certify that they have reviewed the provisions of their commercial building code regarding energy efficiency, and, as necessary, updated their codes to meet or exceed the updated edition of Standard 90.1. Additionally, DOE provides guidance to States on submitting certification statements and requests for deadline extensions. State certifications for Standard 90.1-2016 must be submitted within two years following publication of this notice in the Federal Register.

Supporting Analysis

DOE conducted a technical analysis in support of its determination. This analysis assesses Standard 90.1 compared to the previous edition, and estimates the anticipated energy consumption of buildings required to meet the updated Standard.