The National Park Service requires a contractor to replace the fiber optic cable system between the Maintenance Building and Adobe Building at the John Muir National Historic Site. The work involves demolishing old infrastructure, installing and certifying a new single-mode fiber backbone using existing conduits, and performing additional OTDR testing on a separate cable between the Visitor Center and Muir House. The project is set aside for Small Business concerns under NAICS code 237130, with a construction magnitude estimated between $25,000 and $100,000. The period of performance and specific location for the services are not detailed in this announcement. The Government plans to award a single, firm-fixed-price contract based on a comparative evaluation of price, technical capability, and past performance.