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.
We completed our survey process for the July 2025 CIH Online Review course. 100 days after the course end date, we identified participants who completed the course and asked them to complete a short survey.
We completed our survey process for the January 2025 CIH Online Review course. 100 days after the course end date, we determined the participants who completed the course and asked them to participate in a short survey.
We completed our survey process for the January 2024 CIH Online Review course. 100 days after the course end date, we determined the participants who completed the course and asked them to participate in a short survey.
We completed our survey process for the July 2023 CIH Online Review course. 100 days after the course end date, we determined the participants who completed the course and asked them to participate in a short survey.
We completed our survey process for the January 2023 CIH Online Review course. 100 days after the course end date, we determined the participants who completed the course and asked them to participate in a short survey.
