The Department of Defense, specifically the United States Air Force Nuclear Weapons Center (AFNWC), is seeking sources for the Tail Kit Assembly (TKA) Surveillance and Sustainment Support for the B61-13 nuclear gravity bomb and its future variants. The procurement aims to expand sustainment and support services currently provided under an existing Indefinite-Delivery Indefinite-Quantity (IDIQ) contract, which includes engineering services, logistics support, and production of necessary training and test equipment. This initiative is critical for maintaining the safety, security, and reliability of the B61 Family of Systems, ensuring that the contractor can adapt to evolving requirements. Interested parties are encouraged to submit a Statement of Capability (SOC) by the specified deadline, with inquiries directed to Byron Muhlenberg or Chad Miller via their provided email addresses.