OHST Exam Prep: OSHA Hierarchy of Controls Explained Clearly

OHST Exam Prep Series | Field2Compliance

In this concise Field2Compliance training, you’ll master one of OSHA’s most essential exam and workplace safety topics — the Hierarchy of Controls. Understanding this hierarchy is vital for both the Occupational Health and Safety Technologist (OHST) exam and real-world safety applications.

This quick video uses clear visuals and relatable examples to explain how each level of the hierarchy — from Elimination and Substitution to Engineering Controls, Administrative Controls, and Personal Protective Equipment (PPE) — works to reduce hazards in the workplace.

Drawing on concepts reinforced in OHST Exam Secrets by Mometrix and the Safety Professional’s Reference & Study Guide by Yates (not affiliated), this lesson helps you connect theoretical exam material to real-world field experience.

You’ll Learn in This Video:

• The 5 OSHA Hierarchy of Controls ranked by effectiveness.
• Why Elimination and Substitution are the most powerful controls.
• How Engineering and Administrative Controls reduce exposure.
• Why PPE is the last resort in the control process.
• How to apply the hierarchy in compliance programs under EPA, RCRA, and OSHA frameworks.
• How to recall hierarchy order easily for exam questions.

Why It Matters:

Understanding OSHA’s Hierarchy of Controls ensures you can identify and justify the most effective hazard control methods in any scenario — a key skill tested on the OHST exam and valued in workplace audits.

This knowledge also helps field professionals move from reactive to proactive safety management, reducing incidents, improving compliance documentation, and building a stronger safety culture.

Perfect For:

• OHST, CHST, and ASP candidates preparing for certification exams
• Environmental, Health, and Safety (EHS) coordinators and trainers
• Construction, manufacturing, and utility professionals
• Supervisors leading toolbox talks and compliance briefings

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