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Fall distance and clearance calculations

CHST written lesson, 8 min read. CHST Domain 1: Hazard and Risk Identification and Control

AI-drafted from the cited rules and fact-checked against them. Study aid, not site-specific safety advice. The official rule controls.

What you'll learn

  • State the free fall and deceleration distance limits for a fall arrest system
  • Recall the maximum arresting force for a harness and for a belt
  • Add up the clearance needed below an anchorage
  • Decide whether an available clearance is adequate
  • Apply the 310 pound and anchorage strength criteria

What this lesson covers

Fall clearance math tells you whether a worker will stop before hitting the level below. This lesson covers the free fall and deceleration limits, the arresting force caps, and how to add up the clearance beneath an anchorage, which the exam tests directly.

This lesson is included with a pass

Written lessons come with every CHST pass, along with the video lessons, the question bank, mocks and the tutor. $80 per exam or $143 for all three, for 180 days.

Try the free fall distance and clearance calculations practice questions

Visualize this

  • Move the anchor, the lanyard and the deceleration distance and watch where the worker stops.

An interactive diagram, included with every CHST pass.

See where you stand on the CHST

25 questions, free, no card. You get a readiness score for each CHST domain.

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