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Registered Industrial Hygienist (RIH)
The Registered Industrial Hygienist (RIH) course delivers training in assessing and managing workplace health hazards. Offered by the American Institute of Safety Professionals, it covers exposure assessment, hazard control, and OSHA compliance to protect employee health and safety across many key industries.
What is the Registered Industrial Hygienist (RIH)?
The Registered Industrial Hygienist (RIH) certification from the American Institute of Safety Professionals develops the professional competency to anticipate, recognise, evaluate, and control workplace health hazards. Industrial hygiene is the science and practice of protecting worker health from chemical, physical, biological, and ergonomic hazards through exposure assessment and control. While safety addresses acute injury hazards (falls, struck-by, electrocution), industrial hygiene addresses chronic health hazards (chemical exposure causing cancer, noise causing hearing loss, vibration causing Raynaud's, ergonomic exposure causing MSDs) — hazards that develop over months and years of exposure rather than in a single incident. The curriculum covers the AREC framework (Anticipate, Recognise, Evaluate, Control), chemical hazards (gases, vapours, dusts, fumes, mists — routes of exposure, health effects, dose-response), physical hazards (noise, vibration, heat, radiation — ionising and non-ionising), biological hazards (pathogens, mould, allergens), ergonomic hazards (MSD risk factors), exposure assessment methodology (personal sampling, area sampling, direct-reading instruments, biological monitoring), occupational exposure limits (OSHA PEL, ACGIH TLV, NIOSH REL — TWA, STEL, Ceiling), industrial ventilation (general dilution, local exhaust, capture velocity, hood design, ductwork, air cleaning, fan selection), PPE selection for health hazards (respiratory, hearing, chemical protective), exposure control strategies (hierarchy applied to health hazards), health surveillance programmes, and IH programme management. All training is delivered 100 percent online through leading delivery platforms and the American Institute of Safety Professionals Learning Management System (LMS). On successful completion, you receive an American Institute of Safety Professionals certificate, a professional wallet card, and an official transcript, all employer-verifiable at amiosp.com/student-verifications.
Who should take this course?
- Safety professionals expanding into industrial hygiene
- IH technicians advancing to professional IH practice
- Safety managers who need IH competency for chemical/physical hazard management
- Occupational health professionals supporting exposure assessment
- Environmental professionals transitioning to occupational health
- Anyone seeking the RIH professional designation
What will you study?
Core Modules
- 01Introduction to Industrial Hygiene
- 02Hazard Identification
- 03Exposure Assessment Techniques and Monitoring Methods
- 04Control Measures
- 05Industrial Hygiene Standards and Regulatory Compliance
- 06Incident Investigation, Reporting, and Risk Mitigation
- 07Implementing Industrial Hygiene Programs and Best Practices
- 08Creating a Culture of Safety, Health, and Regulatory Compliance
Optional / Advanced Modules
- 01Advanced Industrial Hygiene Assessment Tools and Techniques
- 02Case Studies on Industrial Hygiene Incidents and Lessons Learned
- 03Integration of Industrial Hygiene Programs with Safety Management Systems
- 04Continuous Improvement, Auditing, and Professional Development in Industrial Hygiene
How will you be assessed?
Candidates can take this exam through an assigned portal from the American Institute of Safety Professionals. A passing score is 70% or higher, and exam results are provided right after by email to the address provided. The exam is open-book, allowing candidates to validate their answers. Any candidates who do not pass have 1 month after their exam to go through the training materials and can take the exam 3 additional times.
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