Your bus lines are evolving around Brétigny-sur-Orge

Resumption of service to the ZA de la Tremblaie and Eurocontrol of the former line 105A.
A new unique route serving Brétigny station and Eurocontrol with buses from 5:30 am to 9 pm from Monday to Friday.
To reach Brétigny-sur-Orge station from Eurocontrol and the ZI de la Tremblaie, in the morning from 6 a.m. to 12 p.m., take lines 413 and 202 or 2273 (connection to "Imprimerie Nationale").
To reach Eurocontrol and the ZI de la Tremblaie from Brétigny-sur-Orge station, from 12 noon to 8:30 pm, take lines 2273 or 202 and 414 (change to "Imprimerie Nationale").

The new line 106 takes over all the stops of line 105A between Brétigny-sur-Orge station and CEV.

Line 202 takes over and simplifies the route of the old line 105B.
In Bondoufle, the stops "Général de Gaulle", "Pierre Marcille" and "Pasteur" were abolished. Possible postponement at the "Les Petits Bois" and "Hôtel de Ville" stops.
Buses from 6 am to 7:45 pm, every 15 minutes in the morning and evening, from Monday to Friday.

A strengthened link between Arpajon and Briis-sous-Forges with 3 additional trips and 5 returns per day.
Buses from 5 a.m. to 10 p.m., every 10 minutes in the morning and evening, from Monday to Friday.

Line 2276 is deleted. Line 2271 offers a transfer solution between the "Branly" and "Les Promenades de Brétigny" stops or via a transfer at the station.
The "Promenades de Brétigny" stop is served in both directions by traffic all day long.
Buses from 5:15 am to 00:15 am, every 7 minutes in the morning and evening from Monday to Friday.

Line 2273 partly follows the route of line 2276 between Brétigny station and "La Marinière".
A line extended from 10:30 a.m. to 5:30 p.m. on weekdays and Saturdays to the "Imprimerie Nationale" stop in Bondoufle serving La Croix Blanche. In the direction of Bondoufle, the stops served at Plessis-Pâté are "Mozart", "Gymnase", "Mairie", "Rue des Chamois" (new stop) and "La Rogère" (new stop).
Buses from 5:50 am to 8:30 pm every 15 minutes, morning and evening, Monday to Friday.

DM9: An increased frequency and an extended route to Brétigny-sur-Orge station in connection with the RER C.
A reinforced service between Château d'Eau (Linas), Leuville-sur-Orge and Brétigny-sur-Orge thanks to a part of the common route between lines DM9 and DM13. The "Aristide Briand" and "Bois Badeau" stops remain only served by the DM13, as they are today.
Reinforced connections at the "Château d'eau" stop with lines M151, M153, M154 and 91-05 to reach Paris, Massy-Palaiseau or Evry.
DM9 line: Buses from 6:30 am to 7:30 pm every 30 minutes, in the morning and evening, from Monday to Friday.
DM13 line: Buses from 6 am to 9:30 pm every 15 to 30 minutes, in the morning and evening, from Monday to Friday.

TàD 1 and 5 take over during off-peak hours.