What is the acquisition method in which the buyer issues an invitation for bids?

The acquisition method where the buyer issues an invitation for bids is known as sealed bidding. In this process, the buyer invites multiple suppliers to submit their bids in a sealed format, meaning that each supplier's offer remains confidential until the specified opening time. This method promotes fairness and transparency by allowing all interested parties an equal opportunity to compete for the contract.

Sealed bidding is commonly used for procurement where the requirements are clearly defined, allowing suppliers to provide competitive pricing based solely on those specifications. This structured approach helps ensure that the buyer receives a variety of competitive offers, and it simplifies the evaluation process, as bids can be compared side by side without influence from the suppliers once the proposals are submitted.

In contrast, other methods like negotiation or single-source negotiation involve more direct discussions or agreements with specific suppliers rather than a competitive bidding environment. Similarly, while a Request for Quotations (RFQ) can involve bidding, it typically incurs a less formal process where suppliers may provide quotes without the competitive sealed aspect that characterizes sealed bidding.