Fannie Mae Announces New Single-Family Green Disclosures

Fannie Mae, in conjunction with Freddie Mac, is enhancing its Mortgage-Backed Security (MBS) disclosures to provide additional transparency into its Single-Family Green MBS Program. The new pool-level attributes will be included in the MBS Intraday Security and Security Supplemental Issuance Files beginning with March 2024 issuances. The MBS Monthly Security and Security Supplemental Files published March 6, 2024, will include these new attributes for all active outstanding Green MBS. The new security level attribute and new stratifications for the Green Programs are listed below:

• Green Indicator: The indicator denoting whether the security is a labeled Green Bond secured by loans that are eligible per Fannie Mae's Green Bond Framework.
• Green Program Criteria Stratification (Record Type 51): The share of loans secured by properties with eligible energy efficiency program(s), including Green Building Certifications, Energy Rating Indices, and Renewable Energy sources, by loan count and unpaid principal balance (UPB).
• Green Building Certification Stratification (Record Type 52): The share of loans secured by properties certified to eligible green building certifications, including ENERGY STAR, DOE Zero Energy Ready Home, National Green Building Standard, and NEEM, by loan count and UPB.
• Energy Rating Index Stratification (Record Type 53): The share of loans secured by properties scored using eligible energy rating indices, including Home Energy Rating Score, by loan count and UPB.
• Renewable Energy Stratification (Record Type 54): The share of loans secured by properties with renewable energy sources, including solar and geothermal, by loan count and UPB.

The Green Indicator will be disclosed for all MBS securities that meet Fannie Mae's Single-Family Green MBS program criteria. The Green Program Criteria Stratification will highlight the eligible energy efficiency programs of the properties backing the underlying collateral. The additional stratifications will provide more details about these programs. The stratifications are dynamic and will be disclosed only if the pool meets the applicable program criteria.

The file formats and definitions for the above-listed attributes will be available in the Single-Family MBS Disclosures Guide in the applicable security and security supplemental sections. Sample files are available here.

For questions, please contact the Fannie Mae Investor Help Line at 1-800-232-6643, Option 3 or by e-mail.