At a glance
- Employees, union officials, or employers can request an evaluation of possible health hazards at their workplace.
- Request a NIOSH Health Hazard Evaluation (HHE) using the online request form or PDF form.
- HHE program staff will contact you after receiving your request.

Steps to take
Employees, union officials, or employers can request an evaluation of possible health hazards at their workplace. Use the online request form or PDF form below.
Online form
To request an evaluation online, please complete this
PDF form
You can also request an evaluation by filling out a PDF request form:
Submit the completed PDF form using one of the options below:
Fax
513-841-4488
National Institute for Occupational Safety and Health Hazard Evaluation and Technical Assistance Branch 1090 Tusculum Avenue, Mail Stop R-9, Cincinnati, Ohio 45226-1988
Your privacy
Confidential request
If you are an employee requesting an evaluation, you can mark on the request form that you do not want your name revealed to your employer. If you have concerns or questions about confidentiality, please call 1-513-841-4382 to speak with a member of our staff.
Medical information
As provided by federal law, the HHE program protects the personal information it gets from records, forms, or interviews. The HHE program will send employees results of their own personal exposure measurements and medical tests done during evaluations. The employer gets a summary of these results (no employee names are used) and guidance on improving health and safety in the workplace.
What happens after you submit a request
The HHE program will contact the requestor to learn more about the request. Our team will then decide how we can best assist.
Letter with recommendations
For common types of hazards such as mold and indoor environmental quality, an on-site evaluation may not be needed. Our team will review information from all involved parties (employer, employees, employee representatives, etc.) which may include reports about exposures, illnesses, and injuries. We will then recommend ways to reduce employees' exposures and prevent work-related health problems. We may also suggest other resources.
Site visit with final report
If we decide an on-site evaluation is needed, our team will come to the workplace at an agreed upon time. The process may involve:
- Observing work processes and practices
- Reviewing reports of exposure, injury, and illness
- Meeting with employee and employer representatives
- Talking privately with employees about their health
- Measuring exposures
- Surveying employees about their health
- Carrying out medical testing (if needed)
On-site evaluations may need more than one visit. We will work to minimize disruptions to workplace activities while assuring that the request has been fully addressed.