What 29 CFR 1926.1060 requires (plain English)
29 CFR 1926.1060 is the training section of Subpart X (Stairways and Ladders). It requires the employer to provide a training program for each employee using ladders and stairways, as necessary, delivered by a competent person, so that workers understand and can safely handle the hazards these everyday tools present.
The program must enable each employee to recognize hazards related to ladders and stairways and train each employee in the procedures to be followed to minimize these hazards. The specific topics include the nature of fall hazards in the work area; the correct procedures for erecting, maintaining, and disassembling the fall protection systems used; the proper construction, use, placement, and care in handling of stairways and ladders; and the maximum intended load-carrying capacities of ladders.
Retraining is required when necessary, for example, where a workplace change presents a hazard the employee has not been trained for, or where the employee's own performance shows they have not retained the understanding or skill. 1926.1060 is what makes the detailed equipment requirements of 1926.1051–1926.1053 effective in practice, because a correctly built ladder is only as safe as the worker using it correctly.