From 22 September 2019, it will be possible to register vehicles for a new electronic toll system.  Find more information here: https://www.mytocz.eu/en/customer-services/registration-of-vehicles-and-required-documents

The existing on-board units can be returned after the termination of the original toll system at any of 25 distribution points.

A list of distribution points where an onboard unit can be returned: