The syndicated version of Rescue 911 consists of reformatted 30-minute episodes that air in reruns on networks other than CBS. This version of the series consists of three "seasons" (hereafter referred to as "sets") of 100 episodes that first aired on various local affiliates from August 2, 1993 to March 8, 1996, with reruns continued to be syndicated until fall 1998. The one I know it used to come on my CBS affiliate WCSC Channel 5 in South Carolina during the overnight hours, but I didn't see this version in later rerun airings. And my 2nd Fox affiliate KABB 29 Cable 11 in San Antonio used to air it when I watched it at 9:00 and 9:30pm central time zone back in the mid 90's, while repeats of the original format show aired on The Family Channel (now Freeform) and new episodes being aired on CBS at the same time simultaneously.
