This is a market research notice for the remanufacture of a PBG Oxygen Regulator Field Tester, seeking to identify and qualify potential sources for a future contract. The work involves returning unserviceable units to like-new condition through disassembly, cleaning, inspection, assembly, testing, and packaging, and may include supply chain management. The estimated total requirement is 10 to 50 units per year over a potential five-year period (a 3-year base with two 1-year options). To be considered, interested vendors must express interest via the designated button by the notice's closing date and must complete a Source Approval Request (SAR) package to become a qualified source.