Minimum criteria are provided for steps@ stairways@ ladders@ walk-ways@ platforms@ handrails@ handholds@ guardrails@ and entrance openings which permit ingress to and egress from operator@ inspection@ or service platform on off-road work machines parked in accordance with the manufacturer's instructions. This recommended practice pertains to off-road@ self-propelled work machines used in construction@ general purpose industry@ forestry@ and specialized mining machinery categories as defined in SAE J1116 (May@ 1979). It also pertains to specialized off-road machines used in mining such as shovels@ draglines@ and drills not identified in SAE J1116 The minimum criteria established herein is based on one person using the access system at any one time.