xThe Section 45L Tax Credit for Energy Efficient New Homes has been updated and extended through 2032. For homes and units acquired on or after January 1, 2023, the base level tax credit will be specifically tied to ENERGY STAR certification for single-family ($2,500), manufactured ($2,500), and multifamily homes ($500; or $2,500 when prevailing wage requirements are met).

Energy Star residential new construction program requirements

Program versions at a glance

Visit the Multifamily New Construction Certification Process page to learn about multifamily certification options.
Step 1: Select a Path
  • ERI and Prescriptive
  • ASHRAE / Title 24
Step 2:

Implementation Timeline

*UPDATE: All buildings permitted on or after January 1, 2024 will be required to meet the National Version 1.1 program requirements. There is no change for buildings built in locations where National Version 1.1 or a regional program requirement is already in effect.

To determine the program Version that a multifamily building is required to be certified under, identify the location and permit date of the building below.  Note that regional program requirements, and associated implementation timelines, have been developed for buildings in CA, OR, PR, USVI, and WA.

State /
Territory
Buildings Permitted
On or After This Date1
Must Meet the Adjacent
Version
Multifamily New Construction Program Version Revision
AL, AK, AZ, AR, CO, GU, HI, IN, ID, KS, KY, LA, MS, MO, NH, NMI, NC, ND, OH, OK, SC, SD, TN, WV, WI, WY 7/1/2020 National v1 Rev. 01
7/1/2021 National v1 Rev. 02
1/1/2024 National v1.1 Rev. 03
CA 7/1/2020 California v1.2 Rev. 01
7/1/2021 California v1.2 Rev. 02
1/1/2023 California v1.3 Rev. 02
1/1/2024 California v1.3 Rev. 03
CT, DC, DE, FL, IA, IL, MA, MD, MI, MN, MT, NJ, NV, NY, RI, TX, VT 7/1/2020 National v1.1 Rev. 01
7/1/2021 National v1.1 Rev. 02
1/1/2024 National v1.1 Rev. 03
NE 7/1/2020 National v1 Rev. 01
7/1/2021 National v1.1 Rev. 02
1/1/2024 National v1.1 Rev. 03
OR, WA 7/1/2020 Oregon and Washington v1.2 Rev. 01
7/1/2021 Oregon and Washington v1.2 Rev. 02
1/1/2024 Oregon and Washington v1.2 Rev. 03
PA 7/1/2020 National v1 Rev. 01
4/1/2021 National v1.1 Rev. 01
7/1/2021 National v1.1 Rev. 02
1/1/2024 National v1.1 Rev. 03
PR, USVI 7/1/2020 National v1 Rev. 01
7/2/2021 Caribbean v1 Rev. 02
1/1/2024 Caribbean v1 Rev. 03
GA, NM, UT 7/1/2020 National v1 Rev. 01
7/1/2021 National v1 Rev. 02
7/1/2022 National v1.1 Rev. 02
1/1/2024 National v1.1 Rev. 03
ME 7/1/2020 National v1 Rev. 01
7/1/2021 National v1 Rev. 02
10/1/2022 National v1.1 Rev. 02
1/1/2024 National v1.1 Rev. 03
VA 7/1/2020 National v1 Rev. 01
7/1/2021 National v1 Rev. 02
4/1/2023 National v1.1 Rev. 02
1/1/2024 National v1.1 Rev. 03

1. Multifamily buildings permitted prior to 07-01-2021 are permitted to participate in any of the following programs, as long as the project meets the Eligibility Requirements defined within that program: the ENERGY STAR Certified Homes program, the ENERGY STAR Multifamily High Rise program, or this ENERGY STAR Multifamily New Construction Program.

Eligibility

The requirements on this tab apply to the ENERGY STAR Multifamily New Construction (MFNC) program, launched in 2019. This program is available for all attached residential new construction, except two-family dwellings. Visit the Multifamily New Construction Building Eligibility page to determine if your building's units are eligible. Townhouses must use the ERI path.

Program Requirements

Program documents reflect Revision 03. Find details in the Policy Record.

National Program Requirements

National Program Requirements Version 1 (PDF, 250 KB)

National Program Requirements Version 1.1 (PDF, 353 KB)

National Program Requirements Version 1.2 (PDF, 316 KB)

National Mandatory Measures

Applicable to Track A & B:

MFNC Rater Design Review Checklist (PDF, 72 KB)

MFNC Rater Field Checklist (PDF, 72 KB)

MFNC HVAC Functional Testing Checklist (PDF, 407 KB)

MFNC Water Management System Requirements (PDF, 216 KB)

Only Applicable to Track A – HVAC Grading:

MFNC HVAC Design Supplement – Dwellings & Units (PDF, 350 KB)

MFNC HVAC Design Supplement – Common Spaces & Central Systems (PDF, 97 KB)

Only Applicable to Track B – HVAC Testing:

MFNC HVAC Design Report (PDF, 557 KB)

Regional Program Requirements

MFNC Oregon and Washington Program Requirements Version 1.2 (PDF, 318 KB)

MFNC California Program Requirements Version 1.2 (PDF, 74 KB)

MFNC California Program Requirements Version 1.3 (PDF, 75 KB)

MFNC Caribbean Program Requirements, Version 1 (PDF, 100 KB)

Regional Mandatory Measures

MFNC Caribbean Rater Design Review Checklist (PDF, 311 KB)

MFNC Caribbean Rater Field Checklist (PDF, 476 KB)

Download All

Supporting Documents

Verification Files

MFNC HVAC Design Report Excel Tool (EXCEL, 188 KB)

MFNC HVAC Functional Testing Checklist Excel Tool (EXCEL, 384 KB)

Multifamily Workbook (EXCEL, 44 KB)

Photo Documentation Guidance (PDF, 79 KB)

Example Documents

Multifamily Workbook Example (EXCEL, 44 KB)

MFNC HVAC Design Report Example (PDF, 96 KB)

MFNC HVAC Design Report Excel Tool Example (EXCEL, 190 KB)