This International Standard specifies criteria for access systems (steps@ ladders@ walkways@ platforms@ grab rails/handrails@ grab handles@ guardrails and enclosure entrance and exit openings) as they relate to aiding the operator@ maintenance personnel and service personnel in performing their functions on earth-moving machinery. It is applicable to systems giving access to the operator platform and to routine maintenance points on earth-moving machinery@ as defined in ISO 6165@ parked in accordance with the manufacturer's instructions. NOTE This document is based on the 5th to 95th percentile operator dimensions@ as defined in ISO 3411. This International Standard deals with the following significant hazards@ hazardous situations and events: slip@ trip and fall of persons@ and unhealthy postures or excessive effort.