The story
The STL was founded in June 1971 as the Commission de transport de la Ville de Laval (CTL) and started official operations on January 29, 1972. It later was reorganized into the Société de transport de la Ville de Laval on February 7, 1985, until changing to its current name in 2001.
In 2009 and 2010, a proposal to convert some of STL's most heavily used routes to electric trolleybuses was studied in detail, funded jointly by STL and Hydro-Québec, but in the fourth quarter of 2010, STL decided to postpone making a decision on trolleybuses until at least 2011, to allow further study of rechargeable electric buses first.
From Wikipedia’s article on Société de transport de Laval, shared under CC BY-SA 4.0.5