What must be provided to VFR aircraft not being radar vectored that are following larger aircraft?

VFR (Visual Flight Rules) aircraft following larger aircraft are required to be provided with wake turbulence cautionary advisories. This is crucial because larger aircraft generate substantial wake turbulence, which can pose a significant hazard to smaller aircraft that may not be as capable of handling such disturbances. The advisories serve to inform pilots of the potential for wake turbulence encounters, encouraging them to maintain a safe distance from the larger aircraft and thereby enhancing operational safety.

Maintaining awareness of wake turbulence is particularly important during takeoff, landing, and while operating in the vicinity of a large aircraft's flight path, as these scenarios often present the greatest risk. By providing cautionary advisories, air traffic control aids VFR pilots in making informed decisions to mitigate the risks associated with wake turbulence, enhancing overall flight safety in shared airspace.