FNMA Lender Letter LL-2026-04 — Governance framework on use of artificial intelligence and machine learning
Fannie Mae Lender Letter LL-2026-04, published April 8, 2026, "Effective: 120 days from publication" (≈ August 6, 2026). Requires Fannie Mae seller/servicers using AI/ML in origination or servicing to maintain policies and procedures (transparent, trustworthy/ethical, legally informed, risk-based, owner-reviewed at least annually), comply with the Information Security and Business Resiliency Supplement, govern subcontractor/vendor AI/ML no-less-protectively, and disclose AI/ML use to Fannie Mae on request. The 2-page letter does NOT enumerate "four pillars" or a named "AI inventory with fields" — those are operationalizations.
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Verbatim regulatory text
Verbatim provisions from FNMA Lender Letter LL-2026-04 — Governance framework on use of artificial intelligence and machine learning — each quote is a verified substring of the regulator-published source snapshot, not retyped. Quoted for reference; this is not legal advice. The operational layer (P&P updates, prompts) lives in the regulation update kits.
FNMA LL-2026-04 — policies & procedures for AI/ML (transparent, trustworthy, legal-aware, risk-managed)
Have policies and procedures regarding the development, implementation, use and maintenance of any AI/ML system it utilizes, and the measuring and managing of AI/ML risks.
FNMA LL-2026-04 — named owner reviews the AI/ML policies at least annually
have an owner(s) that implements, maintains and reviews the policies and procedures at least annually to ensure they comply with applicable law and consistently reflects industry best practices.
FNMA LL-2026-04 — comply with the Information Security and Business Resiliency Supplement
Comply with the requirements in the Fannie Mae Information Security and Business Resiliency Supplement
FNMA LL-2026-04 — govern subcontractor and vendor AI/ML, no less protectively
Manage risks and appropriate governance of subcontractor and vendor use of AI/ML that is no less protective of these requirements.
FNMA LL-2026-04 — disclose AI/ML use to Fannie Mae upon request
Upon request by Fannie Mae, the seller/servicer must promptly disclose the types of AI/ML used, the purpose and manner for such use, the safeguards the seller/servicer has implemented to mitigate risks related to the use of AI/ML, and such other information as Fannie Mae may require.
FNMA LL-2026-04 — AI/ML use must comply with applicable law and the Lender Contract
the seller/servicer must ensure compliance with applicable laws and the Lender Contract.
Operationalizing FNMA Lender Letter LL-2026-04 — Governance framework on use of artificial intelligence and machine learning
This is verbatim, source-snapshotted regulator text from the Claude for Compliance open corpus. To turn a rule like this into compliance work product: gap-analyze your policies and procedures (P&Ps) against these requirements to surface stale, conflicting, or missing provisions; operationalize any change with a ready-to-run update kit; and produce audit-ready evidence — every step grounded only in the regulator’s own words, never invented.
Source of record: https://claudeforcompliance.com/regs/fnma-ll-2026-04/
· register fnma-ll-2026-04 · Claude for Compliance. Free to read and download;
see regulatory updates and methodology.