ARPA‐E seeks input from experts in the fields of pipeline testing, advanced coating materials, biomimetic materials, smart materials (e.g., self-healing, or self-monitoring), robotic coating deposition tools, material inspection techniques, pipeline mapping tools, 3-D data visualization and data management, control and systems engineering, and gas pipeline operation; as well as service providers who replace, inspect, and locate natural gas utility pipelines. ARPA-E is seeking comments on a draft technical section for a possible future program solicitation, which focuses on the suite of technologies required to rehabilitate cast iron, wrought iron, and bare steel natural gas distribution pipes by creating a new pipe inside the old pipe. The new pipe will meet utilities’ and regulatory agencies’ requirements, have a minimum life of 50 years, and have sufficient material properties to operate throughout its service life without reliance on the exterior pipe.