Certified Industrial Hygienist

Considerations and Requirements For Becoming a Certified Industrial Hygienist

What are some of the considerations and requirements for becoming a Certified Industrial Hygienist (CIH)?  Even if you are not someone thinking about trying to obtain the certification, you may be considering hiring such an individual. Retaining a CIH can be a great decision as it can lead to a healthier working environment for employees, as well as their families.


A CIH is an industrial hygienist that is certified by the American Board of Industrial Hygiene (ABIH).  This certification is granted to industrial hygienists with these proven qualifications:

  • A bachelors or advanced college degree in the sciences or engineering.

  • A minimum of 4 years of full-time professional experience.

  • Successful completion of a written examination.

  • Adherence to a strict Code of Ethics.

  • Continuing practice and on-going professional education.