Can a fine be challenged on public transport?

You can contest a fine set up on the transports (bus, metro, train...) if you consider that the non presentation of your transport ticket was without intent to defraud. For example, you could not compose your ticket because the composting terminals were not working.

You have 2 months to make a complaint to the carrier's customer service by registered letter with notice of receipt (address is shown on your fine).

If you are not satisfied with the answer or if you do not receive a reply within 1 month, you can refer the matter to the company mediator if one exists: the SNCF: titleContentor RATP: titleContent..

Referring to the SNCF Ombudsman online

Seize the mediator of the RATP online