CJMS was a French language radio station located in Saint-Constant, Quebec, Canada, a suburb of Montreal.

[2][1] In November 1998, because of the destructive effects of the ice storm of January 1998, which felled five of the six former CKGM transmission towers, Michel Mathieu and André Turcôt, who had to rebuild two towers and to be better served, returned to the CRTC to request the 1040 kHz, formerly occupied by CFZZ of Saint-Jean-sur-Richelieu, having already belonged to Michel Mathieu; the CRTC gave its response in March 1999.

CJMS and CJWI both shared a broadcasting site at Saint-Constant; the sale would bring the property under a single owner.

[12] CJMS's license was also renewed through August 31, 2017 - a shorter term than usual, due to violations that were incurred under Azoulay's ownership.

[11] On July 31, 2020, due to administrative failures, complaints that content from CJWI, whose programming primarily aimed at the Haitian community, was broadcast simultaneously at prime time on CJMS, and that the station continued to broadcast messages and promotions featuring the voice of a former host who had died two years previously,[who?]

Judges Marc Nadon, Richard Boivin and Marianne Rivoalen rejected the request by CJMS to overturn the decision and keep the station on the air.