Free REHS/RS Exam Prep
Registered Environmental Health Specialist/Registered Sanitarian (REHS/RS)
Pass your REHS/RS exam without spending hundreds on expensive prep courses. Free study guides, practice questions, flashcards, and related exam resources.
Quick Facts
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REHS/RS NEHA Environmental Health Certifications License: Complete Roadmap
Follow this path to maximize your chances of passing on the first try
Phase 1: Facility Inspections (35% of exam)You are here
Master food facility inspections, recreational water, institutions, and body art establishment requirements.
Phase 2: System Inspections & Investigations (34%)
Study onsite wastewater systems, potable water quality, occupational health inspections, and epidemiology investigations.
Phase 3: Compliance & Public Health (23%)
Cover plan review, HACCP compliance, environmental law (RCRA, CERCLA, CWA, CAA, SDWA), and community outreach.
Phase 4: Emergency Response & Timed Practice (8% + review)
Review emergency preparedness, ICS/NIMS, and complete full-length timed practice exams.
Can You Take the REHS/RS Exam?
Check if you meet the basic eligibility requirements
- •Track C (In-Training) available for candidates meeting education requirements but lacking 2 years of experience
- •90-day waiting period between exam retake attempts
- •24 hours of continuing education every 2 years to maintain credential
- •Foreign degree holders must obtain NACES evaluation
REHS/RS Quick Facts
Time to Get Licensed
10-16 weeks for most candidates
From start to license in hand
Retake Policy
Candidates must wait at least 90 days between attempts. There is no limit on the number of retakes, but exam fees and computer testing fees must be repaid for each attempt.
Total Cost Breakdown
Free REHS/RS Prep That Actually Works
The official pass rate is NEHA does not publicly publish an official first-time pass rate for the REHS/RS exam.. Our students do better.
100 Practice Questions
Coverage across all six REHS/RS content domains with detailed explanations.
AI-Powered Learning
Scenario-based explanations for inspection, investigation, and compliance questions.
2026 Updated
Aligned with current NEHA exam content outline, fees, and eligibility tracks.
Free Access
Start REHS/RS prep free before investing in exam fees and study materials.
What You'll Study
8 chapters covering everything you need to pass
Chapter 1: Food Safety Inspections
3 sections
Chapter 2: Recreational & Institutional Inspections
3 sections
Chapter 3: Solid & Hazardous Waste Inspections
2 sections
Chapter 4: Potable Water Systems
3 sections
Chapter 5: Onsite Wastewater Systems
2 sections
Chapter 6: Occupational Safety & Investigations
4 sections
Chapter 7: Epidemiology & Legal Compliance
7 sections
Chapter 8: Public Health Awareness & Emergency Response
4 sections
REHS/RS Exam Details
Registered Environmental Health Specialist/Registered Sanitarian (REHS/RS)
Administered by National Environmental Health Association (NEHA)
Exam Content Breakdown
Based on the official National Environmental Health Association (NEHA) content outline
Food facilities, recreational water, institutions, healthy homes, body art, hazardous/solid waste, and other facility inspections.
Occupational health and safety inspections, onsite wastewater system inspections, and potable water quality inspections.
Complaint investigations, epidemiology investigations, illegal operators, hazardous waste, and indoor air quality investigations.
Regulation development, plan review, HACCP plan review, and technical assistance to stakeholders.
Community health assessment, partnerships, outreach, risk communication, and environmental surveillance.
Community risk assessment, emergency preparedness planning, training, plan implementation, and recovery follow-up.
What's Included
8 Chapters
Complete exam coverage
Practice Quizzes
With detailed explanations
Free to Start
No credit card required
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What's Next After the REHS/RS?
After passing the REHS/RS, you can pursue these career paths
NEHA CP-FS
Food safety specialist credential that deepens HACCP and regulatory expertise beyond general REHS scope.
BCSP CSP
Certified Safety Professional credential for environmental health specialists expanding into occupational safety management.
CIH
Certified Industrial Hygienist credential for specialists focused on workplace exposure assessment and control.
REHS/RS Exam FAQ
Official National Environmental Health Association (NEHA) Resources
Verify information with these official sources
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