The Library of Congress is notifying interested parties about a modification to the Agile Indefinite Delivery Indefinite Quantity (IDIQ) contract, which has resulted in an increase to the shared ceiling price on a sole-source basis. This adjustment is in accordance with FAR regulations and pertains to IT and telecom business application/application development support services, which are critical for the Library's operational efficiency. The modifications are documented in a redacted class justification and approval document, which provides further details on the decision. For inquiries, interested parties can contact Quinn Cartheuser at qcart@loc.gov or by phone at 202-707-2339, or reach out to Veronica Price at vprice@loc.gov or 202-707-9335.