source:
  type: guide
  id: fnma-sel-a3-4-02
  authority: Fannie Mae Selling Guide A3-4-02 — Data Quality and Integrity
  description: Fannie Mae Selling Guide A3-4-02 — Data Quality and Integrity.
  coverage_tier: operative
obligations:
- id: fnma-sel-a3-4-02-full
  canonical_id: fnma-sel-a3-4-02-full
  section: Fannie Mae Selling Guide A3-4-02 — Data Quality and Integrity
  type: do
  tags:
  - regulator-direct
  - fnma
  - selling-guide
  - corpus-expansion
  - tier-operative
  primary_source:
    tier: 1
    authority: Fannie Mae Selling Guide A3-4-02 — Data Quality and Integrity
    source_class: fnma-guide
    source_url: https://singlefamily.fanniemae.com/media/document/pdf/selling-guide
    snapshot_id: 5f7b8b79da595d76
    fetched_at: '2026-05-25T14:09:57Z'
    content_hash: sha256:98cf85a02861bbe84914a0e339b327c8fc131869a8a573882007bbeea60c5701
    paragraph_quote: A3-4-02, Data Quality and Integrity (08/07/2018) Introduction
      This topic contains information about data quality and integrity. Data Integrity
      and Quality Data Integrity and Quality Lenders must supply Fannie Mae with complete
      and accurate data. All data entered into DU must be veriﬁable. The lender must
      have adequate procedures in place to validate the integrity of speciﬁc data
      for each underwriting recommendation. A lender must provide key information
      - called loan delivery data - about all of the mortgages that it delivers to
      Fannie Mae. Some of these data elements are not required to qualify a borrower
      or underwrite a loan but are still required to be delivered to Fannie Mae. The
      lender remains responsible for representations and warranties for the life of
      the loan related to misstatements, misrepresentations, omissions, and data inaccuracies
      subject to the limitations set forth in A2-2-07, Life-of-Loan Representations
      and Warranties. Fannie Mae may require the lender to correct data as needed.
      Recent Related Announcements There are no recently issued Announcements related
      to this topic. Published May 6, 2026 124
  judgment: false
