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What Is an Indu​strial Hygienist? 

Industrial hygienists are scientists and engineers committed to protecting the health and safety of people in the workplace and the community.

A professional industrial hygienist is a person possessing either a baccalaureate degree in engineering, chemistry, physics, or a closely related biological or physical science from an accredited college or university, who also has a minimum of three years of industrial hygiene experience. A completed doctorate in a related physical, biological, or medical science or in related engineering can be substituted for two years of the three-year requirement. A completed master’s degree in a related physical or biological science or in related engineering can be substituted for one year of the three-year requirement. Under no circumstances can more than two years of graduate training be applied toward the three-year period.

While this definition does not include certification, the American Industrial Hygiene Association recognizes the need for such certification by every professional industrial hygienist as an appropriate hallmark by one’s peers and strongly urges all eligible members to obtain American Board of Industrial Hygiene certification.

The American Board of Industrial Hygiene has established that successful candidates for certificates shall attain the status of Diplomate of the American Academy of Industrial Hygiene, subject to compliance with requirements established by the American Board of Industrial Hygiene.

The active ABIH certification requires that the person be admitted to examination based upon academic training and four years of experience for the Certified Industrial Hygienist (CIH), successfully pass a one-day examination, and maintain active professional involvement by recertification on a five-year cycle following first certification.