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Professional Development Programs • Registered Sanitarians

REHS/RS Exam Online Prep Course


Course dates and registration

Spring 2024: March 25 – May 17

Registered Sanitiarian Exam prep student Jayme

When Jayme got a promotion at work, her boss told her she had to pass the REHS/RS exam within six months. Read her story.

Prepare for the Registered Environmental Health Specialist/Registered Sanitarian (REHS/RS) exam with this eight-week, 16-hour, online prep course. Broken down by exam topic areas, this preparation course will give you the resources you need to pass the exam. Study the various topics you need to know and gain the depth of knowledge you’ll need to be successful. Make the most of your study time by targeting your efforts on relevant information.

  • 100% online instruction
  • A comprehensive study guide
  • Opportunities to study with peers
  • Sample exam questions
  • Overview of the application process

The Wisconsin State Statute defines sanitarian as an “individual who, through education, training or experience in the natural sciences and their application and through technical knowledge of prevention and control of preventable diseases, is capable of applying environmental control measures so as to protect human health, safety, and welfare.” Becoming a registered sanitarian confirms that the individual possesses knowledge on a variety of environmental and public health issues and can properly take corrective action to protect human health. Many registered sanitarians work in the public and private sectors and are employed by state and local government in regulatory programs such as food safety, drinking water regulation, wastewater systems, radiation protection, housing, and occupational safety.

Why become a registered sanitarian?

As a registered sanitarian, you will work to protect human health, safety, and welfare by controlling preventable diseases and applying environmental control measures. The Wisconsin Department of Safety and Professional Services requires registered sanitarians to apply for the credentials and pass the REHS/RS exam. Work in the public and private sectors in areas like food safety, drinking water regulation, wastewater systems, radiation protection, housing, and occupational safety. By passing this exam, you’ll be able to use your education and experience and become a registered sanitarian!

Careers include:

  • Air Pollution Analyst
  • Disaster Management Specialist
  • Environmental Health Professional
  • Environmental Inspector
  • Environmental Sanitation Engineer
  • Environmental Toxicologist
  • Epidemiologist
  • Groundwater Protection Specialist
  • Public Education Outreach Specialist
  • Wastewater Treatment Operator

Who should participate?

This program is for individuals who are interested in obtaining their REHS/RS credentials. Participants come from a variety of positions, including nurses, inspectors, engineers, environmental and planning consultants, business owners, quality improvement specialists, and laboratory employees. The program is also open to students of biology, microbiology or environmental sciences. Past participants come from around the United States, and they have worked at the state, federal and county agencies, as well as in the private sector.

Online Instruction

The online class will be delivered via the UW Oshkosh Canvas program. Each participant will be given a Canvas login username and password.


The fee for this course is $490. It includes instruction and a comprehensive study guide. If you already own the NEHA study guide (5th ed.), you may register for $350. Ask about discounts for current UW Oshkosh students and military veterans!

Registration Information

The program fee for the non-credit portion of the prep course is due no later than 10 days before the program. The fee includes instruction and study guide. After that date, call the Division of Online and Continuing Education to determine program availability. Enrollment is limited.

Credit and debit card payments will only be accepted electronically. OCE will no longer accept credit and debit card payments via phone, mail, or fax.

Cancellation Policy

If we receive notice of cancellation 10 full business days before the start of the non-credit portion of the program, you will receive a full refund of fees minus a $35 processing charge. No refunds will be given for cancellations received less than 10 full business days before the program begins. No refunds will be given to no-shows. The Division of Online and Continuing Education reserves the right to cancel any program due to insufficient enrollment, as well as the right to limit enrollment due to demand. If you need special assistance and/or accommodations, please advise us at least 10 days prior to the first class meeting. All requests are kept confidential. UW Oshkosh is an Equal Opportunity/Affirmative Action Institution.


For more information, contact the Division of Online and Continuing Education at (920) 424-1129 or email