CIHC Professional Development Seminar - December 3-5, 2024

Plan to join us for an in-person or virtual event in San Jose, CA.

Registration opens August 1, 2024

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2019 Final Bill Report
Communication Updates
ohta learning

What is a CIH?

Watch this video to learn what Certified Industrial Hygienists do to protect the long-term health and safety of workers and families in every environment.