Fall Arrest Systems (FAS) and Work Position Systems (WPS) Fall Restricting System (FRS)
Trees4Life, I'm pretty sure (office is packed... just moved... can't find it) everything is well laid out in the OHSA books, certainly is in the 'Arborist Safe Work' practices developed in part with the Farm Safety Assc. But anyhow Work Positioning System holds the worker in place, though short devices which won't allow you to fall more the 'X' distance (1m in Ontario)... Fall Arrest System slows your fall if you do... used generally in scaffold work high steel, etc Travel Restriction System (TRS) doesn't let you get to were you can fall (ie edge of bridge)
in tree climbing we have adopted a mix match, our climbing rope will allow some degree of fall arrest (I'm interested what will happen with these more static climbing lines in red tape juristicitions...) our lanyard is a work postioning system... and pulling up slack as we assend our rope is our travel restriction/work position...
There is some thought in Canada (Ontario) that we will see body harnesses mandatory... ie over the shoulder types... great more gear and weight bla bla bla
What's really important here is the injury and the fact that complacency caused an accident, they are a tree company with the gear... and somebody, in the essence of time perhaps took the risk of climbing without gear, we all know it happens but we need to invite discussion, and awareness that it can't, educate the consumer on the safe ways of doing things and decrease the need for speed in the persuit of the all mightly dollar.