This transaction set communicates the results of a student loan guarantee evaluation or decision to relevant parties in the student lending ecosystem. Typically, a guarantor organization sends this document to a lender, educational institution, or loan servicer in response to a guarantee request or inquiry. The BGN (Beginning Segment) establishes the context and reference information for the result being reported, the GR (Guarantee Result Detail) segment contains the core outcome—such as approval or denial status—and the ENT (Entity) loop identifies the individuals or organizations involved, such as the borrower or co-signer, with optional supporting details provided through IN2 (Individual Name Structure Components) and IDB (Indebtedness for Student Loans) segments.

Consider a scenario where Midwest Student Loan Guarantee Corporation receives a guarantee application from First National Bank for a parent PLUS loan. After underwriting, Midwest prepares an X12 139 transmission to First National Bank confirming that the loan guarantee has been approved. The document includes a GR segment indicating approval status, an ENT loop identifying the parent borrower by name and tax ID through the IN2 segment, and optional DB (Disbursement Information) segments specifying when funds may be released. An AMT loop could provide the guaranteed amount and any associated fees, with corresponding DTP segments recording the approval date and guarantee effective date, ensuring First National Bank has complete documentation for closing the loan.