Official NEHA REHS/RS Study Guide (5th Edition)
The official REHS/RS Study Guide, 5th Edition, published by the National Environmental Health Association (NEHA), is the definitive resource for preparing for the Registered Environmental Health Specialist/Registered Sanitarian credential.
Fully updated to align with the latest NEHA exam blueprint and industry standards, this comprehensive manual covers all 14 core disciplines—including food protection, water and wastewater, solid & hazardous waste, vector control, air quality, radiation protection, and emergency preparedness.
Written by subject matter experts, it serves as both an essential exam preparation tool and a valuable on-the-job technical reference for environmental health professionals, sanitarians, and students.
Whether you're pursuing certification or advancing your career in public or private sector environmental health, this is the authoritative study guide you need.
Order your official REHS/RS Study Guide today and take the first step toward your certification!
Product Details
The REHS/RS (Registered Environmental Health Specialist/Registered Sanitarian) Study Guide, 5th Edition, is the definitive educational resource published by the National Environmental Health Association (NEHA). This manual is meticulously designed to prepare candidates for the premier credential in the environmental health field.
The 5th Edition has been updated to reflect the latest industry standards and the current NEHA exam blueprint, covering a vast array of topics from toxicology and food safety to wastewater management and emergency response.
Who Should Use the REHS/RS Study Guide?
This guide is the primary resource for:
Environmental Health Officers & Specialists
Public Health Sanitarian Candidates
Government Regulatory Agency Employees
Private Sector Compliance Officers
Students in Environmental Health Degree Programs preparing for their professional debut
REHS/RS Exam Context and Requirements
This study guide is built to help you master the requirements for the Registered Environmental Health Specialist credential:
Certification Authority: National Environmental Health Association (NEHA)
Exam Provider: Pearson VUE
Certification Validity: 2 Years (Requires 24 Continuing Education hours)
Experience Required:YES – Multiple tracks available, typically requiring a Bachelor’s degree in Environmental Health from an EHAC-accredited program, or a science degree with 30 semester hours in science plus relevant work experience.
Core Knowledge Areas: Air Quality, Solid & Hazardous Waste, Water & Wastewater, Vector Control, Food Protection, and Radiation Protection.
Note: This product is the physical/digital study guide. Examination fees and applications are managed separately through NEHA.
Benefits of the NEHA REHS/RS (5th Edition) Manual
Comprehensive Scope: Covers all 14 disciplines found on the REHS/RS credentialing exam.
Gold Standard Recognition: The REHS/RS is the most widely recognized professional environmental health credential in the United States.
Updated Content: The 5th Edition includes current regulatory data and modern environmental health practices.
Career Advancement: Essential for securing roles in local, state, and federal health departments.
Multidisciplinary Training: Validates skills in everything from vector control to institutional health.
Why Buy This Study Guide?
Direct Alignment: Specifically written by NEHA to match the exam you will take.
Authoritative Source: Eliminate guesswork by using the official manual of the certifying body.
Strategic Layout: Each chapter corresponds to key exam domains to streamline your study time.
Reference Value: Serves as a high-level technical manual for on-the-job use after certification.
How to Use This Manual for Certification
Purchase the REHS/RS Study Guide (5th Edition) and complete a full review of all technical chapters.
Determine your Eligibility Track (Track A, B, or C) based on your education and experience.
Submit your transcripts and application to NEHA for review.
Schedule your exam at a Pearson VUE testing center once you receive your Authorization to Test (ATT).
Achieve your credential and join the ranks of recognized environmental health leaders.
FAQ Section
What is the difference between REHS and RS?
The titles Registered Environmental Health Specialist (REHS) and Registered Sanitarian (RS) are often used interchangeably. The specific title used often depends on the state or jurisdiction, but the NEHA credential covers both.
Who is eligible for the REHS/RS exam?
Eligibility typically requires a Bachelor’s degree. Most candidates qualify through a degree in Environmental Health or a related science degree that includes at least 30 semester hours (or 45 quarter hours) in core science subjects.
Is the REHS/RS certification recognized nationally?
Yes. The NEHA REHS/RS is the most highly regarded credential for environmental health professionals in the U.S. and is often a mandatory requirement for state and local government employment.
How long is the REHS/RS certification valid?
The certification is valid for 2 years. Professionals must complete 24 hours of Continuing Education (CE) every two years to maintain their active status.
Does the 5th Edition differ significantly from previous versions?
Yes. The 5th Edition is updated to reflect the most current exam blueprint and includes revised sections on emerging environmental health threats, updated regulations, and modern methodology.
How do I register for the exam?
After studying with this manual, you must apply through the NEHA website. Once approved, you will be given instructions to schedule your exam through Pearson VUE.
Contact us
4545 Madison St
80216, CO
Follow us on
© 2020 Health Safety and Security LLC • ALL RIGHTS RESERVED