As it promised, the Air Force has unveiled the final solicitation for a $12.5 billion contract vehicle focused on network infrastructure modernization efforts at bases around the world.

Proposals for the multiple-award Base Infrastructure Modernization IDIQ contract are due by 4 p.m. Eastern time on April 22, the Air Force said in its Friday notice to release the request for proposals.

The contract will have both a full-and-open track and small business set-aside portion, the latter of which has five awards reserved for 8(a) companies.

A minimum of three awards are saved for each of these small business categories: HUBZone, women-owned, service-disabled veteran-owned, and small businesses not in a socioeconomic program.

Awardees will compete for task orders to design, install, test and maintain both the wired and wireless components of classified and unclassified networks. They will also responsible for operating, monitoring and sustaining the network based on requirements for multidomain operations.