The use of a cured-in-place pipe (CIPP) liner Carbon Fiber Reinforced Polymer (CFRP) including use of internal mechanical seals for the rehabilitation of nuclear power plant raw water systems can result in significant cost savings increased system reliability and extended piping life. The cost advantage for installation of CIPP alone may reach 10:1 versus excavation and replacement of buried carbon steel piping. This presentation will present recent examples of these applications including the unique requirements faced in the nuclear industry including material qualification licensing and working within outage and operational restrains like limited conditions of operation (LCOs).