The Autorité régionale du transport métropolitain (ARTM) is the organization responsible for planning, organizing, financing and promoting public transit in the Greater Montréal area. The ARTM is also responsible for setting public transit fares within its territory.
The Agglomération de Longueuil (Longueuil, Brossard, Boucherville, Saint-Bruno-de-Montarville, Saint-Lambert) is part of ARTM zone B; the different zones are defined as follows :