Register for the ROH Essay-Style Question Preparation Program

This program is designed specifically for the essay-style component of Part I of the ROH examination. It helps occupational hygiene professionals develop structured written responses to broad, competency-based scenarios that may integrate multiple areas of practice.

Through narrated lessons, realistic scenarios, guided examples, practice exercises, and model responses, the program focuses on professional reasoning, answer organization, exposure interpretation, control decision-making, program design, incident investigation, regulatory awareness, and ethical judgment.

Registration includes access to:

• 6 learning modules with approximately 4.5 hours of video instruction
• 5 ROH-style essay scenarios with guided practice workbook 
• Model answers and response guidance 
• Structured written-response frameworks
• 3 Post-assessment exercises
• Personalized feedback on responses to practice questions and essay scenarios 
• 1-year access to all videos, exercises, and downloadable resources

Program Fee: $299 CAD

Personalized Feedback Included

✓ One-time professional review and feedback on submitted essay practice and post-assessment responses
✓ Certificate of Completion upon satisfactory completion

Access Note: Once registration and payment are confirmed, course access is set up manually and access instructions are emailed. Access is typically provided within 24 hours. Please review the Access and Refund Note before registering. 

How This Program Will Help You

• Develop a structured approach for answering ROH essay-style questions 
• Break broad occupational hygiene scenarios into clear response components 
• Apply the approach across exposure assessment, control strategy, program design, incident investigation, and regulatory/ethical scenarios 
• Interpret exposure data, uncertainty, and scenario-specific limitations 
• Justify recommendations using occupational hygiene principles and professional judgment 
• Build confidence writing organized responses under examination conditionss

Note: Part I of the ROH examination includes both multiple-choice and essay-style components. This program focuses specifically on preparation for the essay-style component. 

Who Is This For? 

Designed for: 

• ROH and ROHT applicants preparing for the essay-style component of the written examination 
• Occupational hygiene professionals strengthening applied reasoning and written communication 
• Learners seeking a structured method for broad scenario-based questions 
• Professionals transitioning from technical knowledge to defensible written responses

Exposure Assessment

Develop structured approaches to hazard recognition, SEG analysis, monitoring strategy, exposure interpretation, and defensible exposure decisions.

Control Strategy

Learn how to justify engineering, administrative, and PPE controls using exposure data, feasibility considerations, hierarchy of controls principles, and occupational hygiene judgment.

Program Design

Learn how to design defensible occupational hygiene and health and safety programs using a PDCA-based structure, practical program elements, monitoring, and continuous improvement. 

Incident Investigation

Apply structured reasoning to exposure incidents involving elevated results, uncertainty, short-duration tasks, mixed exposures, and corrective action decision-making.

Regulatory & Ethical

Develop defensible written responses integrating occupational hygiene legislation, ethical obligations, worker protection principles, documentation, and professional communication.

Structured Response Frameworks

• Learn a repeatable approach for breaking down broad ROH essay-style questions 
• Organize responses using clear components, not memorized answers 
• Adapt frameworks to the specific facts, hazards, controls, and limitations in each scenario

Practical Occupational Hygiene Scenarios

• Work through realistic scenarios involving exposure assessment, controls, program design, incident investigation, and regulatory/ethical issues
• Interpret incomplete information, uncertainty, and scenario-specific limitations
• Connect technical knowledge to practical occupational hygiene decisions

Defensible Written Responses

• Develop clear, organized, and well-supported examination responses
• Justify recommendations using occupational hygiene principles and professional judgment
• Communicate conclusions in a way that is structured, defensible, and relevant to the question

Ehsan Hemmati V. MSc., ROH, CIH, CRSP, CSP, CMIOSH

Ehsan Hemmati is a practicing occupational hygienist with over 15 years of experience supporting occupational health, industrial hygiene, and risk management programs across petroleum, mining, municipal, and other sectors.

He currently provides industrial hygiene support within the refining industry, with responsibilities including exposure assessment, exposure monitoring program development, chemical hazard evaluation, control strategy development, confined space assessments, noise and heat stress management, and occupational health risk reduction initiatives.

Ehsan holds a Master of Science in Occupational and Environmental Hygiene from the University of British Columbia and is certified as a Registered Occupational Hygienist, Certified Industrial Hygienist, Certified Safety Professional, Canadian Registered Safety Professional, and Chartered Member of IOSH.

This program was developed to help ROH candidates build structured occupational hygiene reasoning, professional judgment, and defensible written communication for the essay-style component of the ROH Written Examination.