On September 2, 2011, at exactly 10 AM, CKAC dropped its all-sports format. A recorded announcement from Cogeco vice president Richard Lachance was played, announcing a new traffic information format that would launch at 4:30 AM on September 6, 2011. Branded as Radio Circulation 730, the new format is being subsidized by the Quebec government, and will feature round-the-clock traffic updates from around Montreal, and it has become Canada's first radio station entirely dedicated to traffic and weather (because AM730 adds some Vancouver's news from CKNW in between.) This relaunch superseded an application Cogeco had filed with the CRTC earlier in the year to reactivate the former CINF (Info 690) transmitter for a similar format (while maintaining all-sports on CKAC). Unlike Cogeco's original plans for 690 kHz, CKAC's traffic radio service operates 24 hours a day, with live announcers on the air between 6:00 and 1:00 (non-holiday weekdays are 90' earlier). Pre-recorded announcements detailing overnight road closures and detours are played when live announcers are not on the air.