Abstract: A rooftop fall protection system is disclosed. In one embodiment, the system includes a plurality of at least generally J-shaped stanchions which are attached to the roof. The shorter leg of each stanchion engages the underside of one of the roofing rafters and extends downward lay therefrom, the longer leg of each stanchion is interconnected with the roof's facia board by a facia board mounting clamp and extends upwardly from the roof, while the interconnecting portion between the above-noted legs extends under the facia board. The facia board mounting clamp allows the corresponding stanchion to slide therethrough so as to establish contact with the underside of one of the rafters as noted above. Thereafter, the facia board mounting clamp may be fixed to the corresponding stanchion in an appropriate manner. This allows the stanchion to be used for multiple pitches for roofs.