According to LTA, it is mandatory for all Singapore-registered vehicles to install the new OBU by the end of the OBU installation exercise, except the following:

- Singapore-registered vehicles that are not allowed to travel on mainland public roads such as tractors, locomotives, construction equipment.

- Vehicles on Restricted Use Scheme such as airport vehicles, port vehicles, Pulau Ubin vehicles, vehicles used in offshore islands only, vehicles on laid-up status, and vehicles under the Keeping Scheme.

- Non-mechanically propelled vehicles such as trailers

- Classic/Vintage vehicles as they are more sparingly used and subject to usage restrictions.

The OBU installation exercise is commenced in phases and is expected to be completed by end-2025.

Hence, it will be mandatory to change to the ERP OBU 2.0 if your vehicle is expected to scrap only in year 2026.

Source:

https://onemotoring.lta.gov.sg/content/onemotoring/home/driving/ERP/erp-2-0.html#:~:text=It%20shall%20be%20mandatory%20for,tractors%2C%20locomotives%2C%20construction%20equipment.

https://www.lta.gov.sg/content/ltagov/en/newsroom/2023/10/news-releases/erp-2-0-on-board-unit-installation-starting-in-november-with-fle.html#:~:text=Installation%20to%20Commence%20in%20Phases,be%20announced%20early%20next%20year.

Hope this clarifies :)