sole source justification

https://mygovernmentcontractpress.almoheet-travel.com/navigating-the-pitfalls-of-government-contract-procurement-for-sole-source-justifications

Sole source justification is the formal explanation a buyer provides when they want to purchase from a single supplier without competitive bidding, often because the item is unique, proprietary, or urgently needed, and it must convincingly show that no other vendor can meet the requirements.