The Board for Global EHS Credentialing (BGC) recently released its annual statistics for the Certified Industrial Hygienist (CIH) certification for 2023 through 2025, reaffirming that earning the CIH credential is a true professional milestone—one that requires deep knowledge, disciplined study, and focused preparation.
At Bowen EHS, we’re proud to say that our CIH Exam Online Review participants consistently outperform the BGC’s overall pass rate. Since 2003, our mission has been to help environmental health and safety professionals reach their certification goals—and the data speaks for itself.
How Our Program Drives Higher Pass Rates
We believe Bowen EHS students excel because our program is built on a complete, guided learning experience. Participants benefit from live lectures, interactive discussions, and ongoing instructor support designed to make complex topics more accessible and actionable.
To earn a Certificate of Completion for the Bowen EHS® CIH Online Review Course, participants must:
- Attend or review all 16 lectures.
- Score 70% or higher on every homework assignment.
- Score 70% or higher on the Bowen EHS final exam.
- Complete the course evaluation.
These requirements ensure that every participant stays engaged and truly masters the content before exam day.
Tracking Results That Matter
About 100 days after the lectures end and the CIH exam testing window closes, we invite participants who earned a certificate of completion to respond to a brief survey about their exam experience and results. Our data show a clear trend: those who complete the full review course and take the CIH exam within 100 days of finishing their live lectures have a significantly higher chance of passing.
Diving Into the Numbers
The BGC reported annual passing rates comprising the Spring and Fall testing windows. The combined testing windows could mask the difficulty of the exam in a particular testing window. Our course results are based on the testing window following the course. Let's review this in detail:
| CIH Certification Exam Pass Rate | Testing Windows | 2023 | 2024 | 2025 |
|---|---|---|---|---|
| BGC CIH Applicant Annual Pass Rate | Spring and Fall | 40% | 37% | 43% |
| Bowen EHS January CIH Review Pass Rate | Spring | 61% | 58% | 61% |
| Bowen EHS July CIH Review Pass Rate | Fall | 64% | 48% | 51% |
While the BGC’s overall pass rate reflects the rigor and challenge of the exam, Bowen EHS stands out for helping students convert that challenge into success. Our structured approach, built on two decades of experience, continues to produce results that exceed national averages year after year.
The Gold Standard of Professional Excellence
As the BGC notes, “The Certified Industrial Hygienist (CIH) credential is the global standard for certification in protecting the health and safety of workers and the public...” This prestigious certification demonstrates a professional’s ability to anticipate, recognize, evaluate, and control workplace hazards.
Bowen EHS is proud to help OEHS professionals achieve this level of excellence. With personalized support, flexible learning options, and proven outcomes, we remain a trusted partner for those striving to earn the CIH credential and advance their careers.
