Certified Industrial Hygienist (CIH)
The CIH certification, administered by the Board for Global EHS Credentialing (BGC), validates competency across 16 industrial hygiene subject areas including air sampling, toxicology, ergonomics, engineering controls, noise, radiation, and IH program management.
30
Questions
45 min
Time Limit
70%
To Pass
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Exam Rules
- You can skip questions and return to them later
- Flag questions for review before submitting
- No feedback shown until you submit the entire exam
- Unanswered questions count as wrong — answer everything
- 10 pretest questions are mixed in and don't affect your score
- Timer auto-submits when time runs out
- Your progress is auto-saved every 30 seconds