When all trainsets start running on the NSEWL, it will bring the total number of trains running on the NSEWL to 198 trainsets, up from the previous 186 trainsets. The first 3 C151C trainsets started running on 30 September 2018 on the North-South Line. 3 more commenced service by end-2018, and the remaining 6 started services in early 2019.