The projects must be compliant with Commission Implementing Regulation (EU) 2023/1695, and with Directive (EU) 2016/797] and Directive (EU) 2016/798 of the European Parliament and of the Council or subsequent versions.

For ERTMS on-board proposals:

• Support for retrofitting and upgrade will be limited to vehicles put into operation before 31/12/2020.
• Support will not be given to fitment of new vehicles.
• “International” unit contribution is granted to vehicles planned for authorisation to operate with ERTMS in more than one Member State, including at least 1 Cohesion Member State.
• “Software + Hardware” unit contribution is granted to vehicles demonstrating a necessity for hardware modification(s).

For ERTMS track-side proposals:

• Proposals covering electronic interlocking and/or Class A radio communication as a stand-alone project shall demonstrate a link with ETCS deployment on the railway line(s) in subject.
• “Urban Node” unit contribution is granted to lines subject to ERTMS deployment located within the administrative borders of a city referred to in the Annex II of the revised TEN-T Regulation.

Projects of any budget are admitted.
In order to ensure efficiency in EU funding interventions, applicants are strongly encouraged to submit applications for projects with a total requested EU contribution to the eligible costs of no less than €1.000.000. Where possible, related projects should be grouped and submitted as one proposal.