Building Energy Code (Iowa)

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Last modified on February 12, 2015.

Rules Regulations Policies Program

Place Iowa

Name Building Energy Code
Incentive Type Building Energy Code
Applicable Sector Commercial, Residential
Eligible Technologies Comprehensive Measures/Whole Building
Active Incentive Yes

Implementing Sector State/Territory
Energy Category Energy Efficiency Incentive Programs

Code Change Cycle The state energy code is reviewed on a three-year code cycle corresponding to publication of the IECC. Written requests for changes to the state energy code can be submitted to the state Building Code Bureau. All suggested code revisions are processed through the state administrative rule-making process involving publication, public comments, and public hearings. The latest code update was on January 1, 2010.
Commercial Code 2009 IECC, referencing ASHRAE 90.1-2004. Can use COMcheck to show compliance.

Residential Code 2009 IECC mandatory statewide. Can use REScheck to show compliance.

Date added to DSIRE 2006-07-28
Last DSIRE Review 2012-10-08

References DSIRE[1]


Much of the information presented in this summary is drawn from the U.S. Department of Energy’s (DOE) Building Energy Codes Program and the Building Codes Assistance Project (BCAP). For more detailed information about building energy codes, visit the DOE and BCAP websites.

House File 2361 was signed in April 2006. This law rescinded Iowa's minimum energy efficiency standard for residential construction, the "home heating index," and instead requires the state building commissioner to adopt energy conservation requirements based on a nationally recognized building energy code. The State Building Code Commissioner, in conjunction with the State's Building Code Advisory Council, adopts rules and holds public hearings on the proposed rules.

On October 21, 2009 the Iowa Building Code Advisory Council, after previously issuing a notice of intended action (NIA), approved the adoption of several amendments to the State Building Code, including the adoption of the 2009 IECC effective January 1, 2010 (with a three month transition period during which the previous code, the 2006 IECC, may still be used). Commercial code applies to new construction as well as any work done on existing buildings, but only to new construction of 1-2 family residences. Residential sprinkler requirements have been pushed back until January 1, 2013.

Incentive Contact

Contact Name Monica Stone
Department Iowa Office of Energy Independence
Division Policy and Communications Division
Address Lucas State Office Building
Address 2 321 East 12th Street
Place Des Moines, Iowa
Zip/Postal Code 50319-0034
Phone (515) 281-8681



  • Incentive and policy data are reviewed and approved by the N.C. Solar Center's DSIRE project staff.[1]


  1. 1.0 1.1  "Database of State Incentives for Renewables and Efficiency (DSIRE)"