Federal Building Codes - Commercial
To view the complete, current requirements for energy efficiency in new Federal commercial and multi-family high-rise residential buildings (10 CFR 433: Energy Efficiency Standards for the Design and Construction of New Federal Commercial and Multi-family High-Rise Residential Buildings), you should review both the final rule and also the interim final rule, which contains more details. The final rule focuses on changes made to the interim final rule in response to public comments that were received.
The final rule was issued on December 21, 2007, and became effective on January 22, 2008. The interim final rule was published on December 4, 2006, and became effective January 3, 2007. The new requirements are based on ANSI/ASHRAE/IESNA Standard 90.1-2004. View 10 CFR 433
The final rule also establishes a requirement for new Federal buildings to achieve a level of energy efficiency 30% greater than 90.1-2004 when life-cycle cost-effective. If the additional 30% savings is not life-cycle cost-effective, an agency must evaluate the cost-effectiveness of alternate designs at successive decrements below 30% (e.g., 25%, 20%, etc.) in order to identify the most life-cycle cost-effective design for that building. Life-cycle cost-effectiveness is to be established using the methodology defined in 10 CFR Part 436, subpart A.
Summary of Changes Between Interim Final Rule and Final Rule
There were several changes made to the final rule in response to public comments received. The final rule:
- Clarifies applicability of the new Federal building standards
- Clarifies the distinction between a "new" building and a major renovation "new Federal building" specifies that a building is a new building if it is completely replaced from the foundation up
- Includes a minor modification to Section 433.4(c) to permit energy efficiency better than the maximum level that is cost effective
- Excludes process loads (e.g., medical or industrial equipment) from the energy savings metric and establishes definitions of "receptacle load" and "process load."
Webcast Series
FEMP presented a seven-part webcast series to help Federal agencies comply with the new Federal building energy efficiency requirements. Sessions included:
- Overview of Federal Building Energy Efficiency Mandates/An Introduction to Building Life-Cycle Costing
- Overview of the Requirements of ANSI/ASHRAE/IESNA Standard 90.1-2004
- Appendix G of 90.1-2004
- Integrated Building Design
- Sustainable Design
- Advanced Energy Design Guides
- How to Build 30% Better
Handouts and videos are available for most sessions.
Additional Materials on 90.1-2004
BECP
Other Resources
AEDGs
FEMP-Designated/ENERGY STAR-Qualified

