To whom must amendments issued before the established time and date for receipt of proposals be sent?

Amendments issued before the established time and date for receipt of proposals must be sent to all parties receiving the solicitation. This ensures that all potential bidders have access to the same updated information, which is crucial for maintaining fairness and transparency in the contracting process.

Sending amendments to all interested parties allows them to prepare their proposals based on the most current requirements or changes to the solicitation, promoting an equitable competitive environment. It also prevents any discrepancies or advantages that could result from some bidders having information that others do not.

In a procurement context, ensuring that all vendors are equally informed helps uphold the integrity of the bidding process and encourages a more competitive atmosphere, which can lead to better outcomes for the contracting agency.