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Health Hazard Evaluations (HHEs)

HHE Program Information

What is a Health Hazard Evaluation?

An HHE is a study of a workplace. It is done to learn whether workers are exposed to hazardous materials or harmful conditions.  Below you will find more information about our program in our HHE videos, brochures, and annual report.


NIOSH Health Hazard Evaluation Program: Helping to Eliminate Workplace Health Hazards Video

NIOSH Health Hazard Evaluations: Sampling for Exposures

Informational Brochures

These booklets were designed to inform employers and employees about the Health Hazard Evaluation process, including what a Health Hazard Evaluation is, how to and who can request one, and what happens once the request is made.

Health Hazard Evaluation Program: What Employers Should Know

Health Hazard Evaluation Program: What Employees Should Know

Annual Reports

2014 Health Hazard Evaluation Program Annual Report

The NIOSH Health Hazard Evaluation (HHE) Program is pleased to share its 2014 annual report with you! Our report includes summaries of projects that were interesting and other highlights of our year. We hope the report stimulates conversations about who the HHE Program is and how we make a difference for the health and safety of employees throughout the United States.

Laws and Regulations

Below you will find the laws and regulations regarding the HHE Program.

Health Hazard Evaluation Regulations (Title 42, Volume 1, Part 85)

Occupational Safety and Health Act of 1970 (Section 20)

Federal Mine Safety and Health Act of 1970 (Section 301 and Section 501)