(Amendment of the Safety Regulations and Special Education Regulations) The full harness type of crash prevention equipment is based on the principle, but if the full harness wearers may reach the ground in a crash (height is less than 6.6 ft (2 m) or less) you can use the "torso belt type (single string"). Workers who do the following task must have special education (4.5 hours of academic and 1.5 hours of accomplishment). In places where it is difficult to set up a work floor even at a height of 6.6 ft (2 m) or more, it is involved in working with a full harness type of crash prevention equipment (excluding work involving working at high rope levels). )