Tunnel Transfer Line (TTL) Module and TTL Warm Manifold

Fermi National Accelerator Laboratory (FNAL) is soliciting proposals for the fabrication of cryogenic Tunnel Transfer Line (TTL) modules and warm manifolds for the PIP-II project. Please review the requirements of the solicitation. Some attachments available by approved request only. Proposals can be submitted directly to the Primary Contact listed on this notice.

Amendment 1 extending the due date for proposal was issued on 08/07/2025. This amendment extends the due date from Aug 29, 2025 to September 19, 2025.

Amendment 2 extending the deadline to submit questions related to this solicitation was issued on 08/14/2025. This amendment extends the due date for questions to be submitted from Aug 11, 2025 to Aug 22, 2025.

Amendment 3 providing responses to questions submitted during the open Question and Answer period was issued on 08/28/2025.

Amendment 4 providing additional responses to questions and providing 2 additional Drawing Files was issued on 09/04/2025.

Amendment 5 extending the due date for proposals was issued on 09/16/2025. This amendment extends the due date from Sept 19, 2025 to September 30, 2025.