Requirements for ZERH Certification by Building Type
Effective Dates: The effective dates for ZERH program versions are established in the “DOE ZERH Program Version Effective Dates” table below. To be eligible for the 45L Tax Credit, homes must be certified to the program version in effect according to this table at the Permit Date (or Production Date for Manufactured Homes), as defined in the program requirements document corresponding to the building type. For further information about ZERH and the 45L tax credit, see: Section 45L Tax Credits for Zero Energy Ready Homes, IRS Guidance for Taxpayers on the Section 45L New Energy Efficient Home Credit, and IRS Notice 2023-65.
Implementation of New Versions and Revisions: New program versions (i.e., Single Family Version 2) and revisions to program versions (i.e., Version 1, Revision 9) may optionally be used earlier than the required date once they are issued by DOE. A project certified under a newer program version or revision is also deemed to meet the certification requirements of corresponding earlier (older) versions or revisions. Projects must meet all building eligibility requirements (type and location) as stated in the program documents applicable to the version and revision used for certification.
Stay Up to Date with New Program Versions: Partners should subscribe to the ZERH newsletter for updates about the development of new program versions and revisions.
Builders and Developers: The first step to building a certified Zero Energy Ready Home is to register as a partner. Please visit the Partner Central page for more information.
Raters and Verifiers: All Zero Energy Ready Homes must be certified by a third-party verifier. See DOE-Recognized ZERH Certification Organizations for more details.