The Exo L'Assomption and Terrebonne–Mascouche sector is responsible for organising public transportation services throughout the administrative region of Lanaudière, northeast of Montreal, in central Quebec, Canada.

This report overwhelmingly favoured a public transportation service managed within the region instead of the integration of existing public transit in L'Assomption and Les Moulins with either of the large Montreal (STM) or Laval (STL) systems.

The result of this was the creation of the Conseil régional de transport Lanaudière in 2002, under the management of the six regional county municipalities of D'Autray, Joliette, L'Assomption, Matawinie, Montcalm and Les Moulins, with additional transit user representation on the board.

This also required each MRC to manage operations in their territory, with a structure which may vary depending on different local needs.

Specialized accessible transportation is administered locally within each member regional county municipality.