Mandatory Use of PIEE Solicitation Module effective 1 October 2026

The Department of Defense is announcing the mandatory use of the Procurement Integrated Enterprise Environment (PIEE) Solicitation Module, effective October 1, 2026. This module will be used for publishing unclassified solicitations and receiving offers and quotes. The document provides guidance on how to use the PIEE Solicitation Module, including how to indicate interest in a notice, post an offer, and submit an unsolicited proposal. • The PIEE Solicitation Module is accessible at https://piee.eb.mil. • Vendors are required to register in the PIEE website to respond to solicitations. • The module has various features, including user dashboards, notice search criteria, and saved searches. • The document provides step-by-step instructions on how to use the module, including how to post an offer, submit an unsolicited proposal, and withdraw an offer.