6.2.4.6. Securing ladders: All ladders shall be placed on firm ground, secured at top and intermediate
positions to maintain them rigidly in place and to support the loads imposed upon them.
6.2.4.7. Restrictions: Ladders will not be used as work platforms or as structural members of scaffolds or as
walkways. Ladders shall not be used in horizontal position.
6.2.4.8. Figure illustrating three-point contact