This is a Sources Sought notice for engineering, technical, and manufacturing services to support Navy air conditioning and refrigeration systems, specifically for approximately 50 new AC plants and chiller backfit kits. The government intends to issue a sole-source solicitation to the incumbent, Johnson Controls Navy Systems (JNCS), but is seeking capability statements from other interested parties to inform its procurement strategy. The anticipated period of performance is 5 years (60 months) beginning at award, with an RFP expected in June 2026. Interested businesses must submit a capability statement of no more than 5 pages. No specific budget or location for performance is mentioned in the description.