3.1 Homes/1.1 MFNC Transition Update
The EPA is continuing to review and evaluate comments received on the proposed Single-Family New Homes (SFNH) National Version 3.2 and Multifamily New Construction (MFNC) National Version 1.2 program requirements, as well as the proposed new Next Generation program. However, in the interest of providing partners with the maximum amount of time to prepare for the national transition to Single-Family v3.1/Multifamily v1.1, EPA is establishing and announcing the timeline for this important program change now.
In states where Version 3.0 of the ENERGY STAR Single-Family New Homes National Program Requirements is still in effect, homes permitted on or after January 1, 2023 will be required to meet Version 3.1.
In states where Version 1.0 of the ENERGY STAR Multifamily New Construction National Program Requirements is still in effect, buildings permitted on or after January 1, 2024 using the Prescriptive or ERI Paths will be required to meet Version 1.1; and those using the ASHRAE Path will be required to meet a performance target baseline of ASHRAE 90.1-2010 or later.
Find more details about implementation in your state here: ENERGY STAR New Construction Program Requirements