Authorized the use of interim tank specifications for new construction of TIH cars DOT-105J500I, DOT-112J500I or DOT-105J600I, depending on commodity, and 9 mph rollover protection. These cars are limited to a 20-year regulatory life. Previous articleNext Generation Rail Tank Car (NGRTC) Project ConcludedNext article The Advanced Tank Car Collaborative Research Program (ATCCRP) is Formed