Key updates include continued acceptance of Indoor AirPlus Version 1 certification through December 31, 2028, revised California energy performance requirements, simplified Energy Rating Index (ERI) documentation for multifamily projects, and updated performance options for multifamily projects using the Phius pathway.

What this means for builders: Reviewing the updated requirements now can help teams prepare for certification changes, coordinate documentation, and avoid delays as new projects move forward.

Our teams support builders with energy ratings, certification requirements, testing, and documentation. Staying informed about program updates helps us work with builders to navigate changing requirements and plan for successful project certification.

Learn more: Review the updated DOE Efficient New Homes program documents for single-family homes and multifamily projects, or contact your local Arcxis representative today here.