From 2 January 2019, owners of electric scooters (e-scooters) can register their devices with LTA.
To use your electric scooter on public paths, you must ensure that it is registered with Land Transport Authority (LTA), with its Registration and Identification Marks properly affixed and displayed.
Where to register and How to get your unique LTA Registration Mark ?
You can register your devices through LTA’s website at www.onemotoring.com.sg/escooter or at any SingPost Post Office.
Details on registration process : https://ninebot.com.sg/electric-scooter/how-to-register-your-e-scooter/