• This page, 225 CMR 22.00: Massachusetts Stretch Code and specialized code for low-rise residential -- 2025 residential low-rise amendments to IECC2021 and IRC 2021 chapter 11: energy efficiency, is   offered by
  • Trial Court Law Libraries
  • Massachusetts Court System
This is a part of  the law library: 225 CMR  
Regulation

Regulation  225 CMR 22.00: Massachusetts Stretch Code and specialized code for low-rise residential -- 2025 residential low-rise amendments to IECC2021 and IRC 2021 chapter 11: energy efficiency

Date: 02/14/2025
Organization: Massachusetts Department of Energy Resources
Regulatory Authority: M.G.L. c. 25A, § 6
St. 2021, c. 8
Official Version: Purchase the official print version

225 CMR 22.00 contains the Stretch Energy Code (Stretch Code) and Municipal Opt-in Specialized energy code (Specialized Code) for low-rise residential buildings. The Stretch Code is an overlay appendix to the "base" building energy code which emphasizes energy performance, as opposed to prescriptive requirements, and is designed to result in cost-effective construction that is more energy efficient than that built to the "base" energy code. The Specialized Code is an overlay appendix to the "base" building energy code which is required by M.G.L. c. 25A, § 6 to help achieve Massachusetts greenhouse gas emission limits and building sector sub-limits and is designed to ensure that new construction is consistent with a net-zero Massachusetts economy in 2050, primarily through a combination of energy efficiency, that it in turn enables reduced heating loads, and efficient electrification.

(Note: please see 225 CMR 23.00 for Commercial, Multi-family and all other construction)

Download a PDF copy of the regulation below.

Contact   for 225 CMR 22.00: Massachusetts Stretch Code and specialized code for low-rise residential -- 2025 residential low-rise amendments to IECC2021 and IRC 2021 chapter 11: energy efficiency

Trial Court Law Libraries

Help Us Improve Mass.gov  with your feedback

Please do not include personal or contact information.
Feedback