Commercial and Residential Construction

2009 IECC

Effective April 1, 2011, the Texas State Energy Conservation Office adopted the 2009 International Energy Conservation Code (IECC) for commercial, industrial and residential building over three stories. The code applies to R2, R3 and R4 residential buildings and excludes one- and two-family residences of three stories or less above grade.

The 2009 IECC updated the Texas Building Energy Performance Standards previously based on the 2000 IECC with 2001 Supplement. Full compliance with the 2009 IECC would yield approximately 8-15% savings in residential and commercial energy use, while safeguarding the state's valuable energy industries.

View the code as published in the Texas Register: Codified in 34 TAC §19.53

2009 IECC Training Videos

2009 IECC Codebook

The International Code Council (ICC) provides codebooks for purchase.

Compliance Software

COMcheck™
The COMcheck software, manual code compliance, and reference guides simplify and clarify commercial and high-rise residential energy code compliance. Forms and checklists are included for documenting compliance.