Six regions including Aquitaine, Brittany, Centre, Nord-Pas de Calais, Provence-Alpes-Côte d'Azur, and Rhône-Alpes ordered a total of 129 sets in varying configurations in 2010, and if all options are exercised, Bombardier could eventually supply 860 trains.

The latest order takes the total number of Régio 2N sets on order to 159, the first of which are now being delivered. The additional trains will be assembled at Bombardier's Crespin plant in northeast France and will be delivered between June 2016 and April 2017.

The modular articulated emu can be supplied in suburban, regional, or intercity configuration, with train lengths ranging from 81 to 135m. Capacity ranges from 350 to 660 seated passengers on trains with a 2+2 seating layout.

Earlier this month Ile-de-France regional transport authority Stif voted to fund a further order for 48 110m-long Régio 2N sets, which it expects to enter service on Line R from Paris Gare du Lyon to Melun by December 2018.