What is the In-vehicle Unit (IU)?

Ans: For foreign-registered vehicles intending to travel into ERP roads, expressways or area during ERP operational hours, vehicles will need to be fitted with either a Permanent IU (installation cost SGD150) or a Temporary IU (TIU).

For foreign-registered cars that do wish to fit or rent an IU, motorists can opt for a fix ERP fee of S$10 per day, regardless of the number of times they pass through an ERP gantry in the day.