Transilien Paris-Saint-Lazare

• Paris-Saint-Lazare
• Asnières-sur-Seine station
• Bois-Colombes station
• Colombes station
• Le Stade station
• Argenteuil station
• Val d'Argenteuil station
• Cormeilles-en-Parisis station
• La Frette–Montigny station
• Herblay station
• Conflans-Sainte-Honorine station
• Éragny–Neuville station
• Saint-Ouen-l'Aumône-Quartier de l'Église station
• Pontoise station
• Osny station
• Boissy-l'Aillerie station
• Montgeroult–Courcelles station
• Us station
• Santeuil–Le Perchay station
• Chars station
• Lavilletertre station
• Liancourt-Saint-Pierre station
• Chaumont-en-Vexin station
• Trie-Château station
• Gisors station

• same route as the Gisors line between Paris-Saint-Lazare and Argenteuil
• Sannois station
• Ermont–Eaubonne station

• same route as the Gisors line between Paris-Saint-Lazare and Conflans-Sainte-Honorine
• Conflans-Fin-d'Oise station
• Maurecourt station
• Andrésy station
• Chanteloup-les-Vignes station
• Triel-sur-Seine station
• Vaux-sur-Seine station
• Thun-le-Paradis station
• Meulan–Hardricourt station
• Juziers station
• Gargenville station
• Issou–Porcheville station
• Limay station
• Mantes-Station station
• Mantes-la-Jolie station

• Paris-Saint-Lazare
• Houilles–Carrières-sur-Seine station
• Sartrouville station
• Maisons-Laffitte station
• Poissy station
• Villennes-sur-Seine station
• Vernouillet–Verneuil station
• Les Clairières de Verneuil station
• Les Mureaux station
• Aubergenville-Élisabethville station
• Épône–Mézières station
• Mantes-Station station
• Mantes-la-Jolie station
• Rosny-sur-Seine station
• Bonnières station
• Vernon–Giverny station

Line J utilises four-letter codes, called a mission code or the name of service. The four-letter code begins with a letter that designates the terminus of the station.[2]

The first letter designates the train's destination.

• A: Argenteuil
• C: Conflans Sainte-Honorine
• E: Ermont-Eaubonne
• G: Gisors
• H: Houilles Carrières-sur-Seine
• J: Vernon
• K: Cormeilles-en-Parisis
• L: Les Mureaux
• M: Mantes-la-Jolie
• P: Paris Saint-Lazare
• T: Pontoise
• V: Vernon
• Y: Boissy-l'Aillerie

The second, third and fourth letters indicate the stations served by the train. Formerly, the second letter was used to designate the train type (I for express trains, A for semi-express trains, O for local trains), but this is no longer the case (but most all stops trains of Line J keep the O as the second letter). The third letter was also used to designate the route taken to the destination (for example C as a third letter indicates "via Conflans Sainte-Honorine"), but this is now abolished along with the second letter. Typically, mission codes or the name of services of line J have the following composition of destination, vowel, consonant, vowel (CARA, GENE, MOLE, PALE, TOCA, etc.) but only four codes follow the pattern of destination, vowel, consonant, consonant (PACK, PANS, TANS and VERN).

• Paris-Saint-Lazare
• Pont-Cardinet station
• Clichy–Levallois station
• Asnières-sur-Seine station
• Bécon-les-Bruyères station
• Les Vallées station
• La Garenne-Colombes station
• Nanterre-Université station
• Houilles–Carrières-sur-Seine station
• Sartrouville station
• Maisons-Laffitte station
• Achères-Ville station
• Conflans–Fin d'Oise station
• Neuville-Université station
• Cergy-Préfecture station
• Cergy-Saint-Christophe station
• Cergy-le-Haut station

• same route as the Cergy line between Paris-Saint-Lazare and Bécon-les-Bruyères
• Courbevoie station
• La Défense station
• Puteaux station
• Suresnes–Mont-Valérien station
• Le Val d'Or station
• Saint-Cloud station
• Garches–Marnes-la-Coquette station
• Vaucresson station
• La Celle-Saint-Cloud station
• Bougival station
• Louveciennes station
• Marly-le-Roi station
• L'Étang-la-Ville station
• Saint-Nom-la-Bretèche–Forêt de Marly station

• same route as the Saint-Nom-la-Bretèche line between Paris-Saint-Lazare and Saint-Cloud
• Sèvres–Ville-d'Avray station
• Chaville-Rive-Droite station
• Viroflay-Rive-Droite station
• Montreuil station
• Versailles-Rive Droite station

A four-letter code system is in use throughout Line L. These codes do not display on trains, but they are displayed on passenger information display systems.[4]

The destination of the train is indicated by the first letter.

• B: Bécon-les-Bruyères
• D: Saint-Cloud
• F: Maisons-Laffitte
• N: Nanterre-Université
• P: Paris Saint-Lazare
• R: Marly-le-Roi
• S: Saint-Nom-la-Bretèche–Forêt de Marly
• U: Cergy-le-Haut
• V: Versailles-Rive Droite

The train type is indicated by the second letter.

• O: All stops
• A: Semi-express
• I: Limited stops
• U or E: Uses other stopping patterns

The route taken to the destination is indicated by the third letter.

• A: Asnières sur Seine
• B: Bécon-les-Bruyères
• C: Clichy–Levallois
• L: La Défense or Les Vallées
• M: Nanterre-Université
• P: Pont Cardinet

The fourth letter has no meaning, but it acts as a "padding" letter in order to make the code pronounceable.