yet as you rightly said this not stopped he state from developing its own system starting to use kind of version of at an early stage
Yet, as you rightly said, this has not stopped a single Member State from developing its own system or starting to use a kind of embryonic version of ERTMS at an early stage.
Yet, as you rightly said, this not stopped a State from developing its own system starting to use kind of version of at an early stage.