Environmental health specialists play a critical role in protecting communities, ensuring safe environments, and enforcing regulations that support health and safety. If you're considering becoming a registered environmental health specialist, this guide will walk you through what the role entails, how to earn the credential, and how to prepare for success in this impactful field.
Environmental Health Specialists: Roles and Responsibilities
Registered Environmental Health Specialist (REHS): What It Means
REHS Credential and Certification Overview
REHS Credential and Certification Overview
Education Requirements
Most candidates need a bachelor’s degree in environmental health or a related field such as health sciences. Typically, programs require at least 30 semester hours (or 45 quarter hours) in subjects related to environmental health, including:
- Environmental law
- Epidemiology
- Toxicology
- Occupational safety
Some candidates may come from another college or university program but must complete specific coursework aligned with the requirement for environmental health set by the Environmental Health Accreditation Council.
Work Experience
In addition to education, candidates must complete two years of qualifying work experience in the field. This work experience should involve duties like:
- Conducting inspection activities
- Managing hazardous waste management processes
- Supporting environmental health program initiatives
The years of qualifying work experience ensure candidates are prepared for real-world challenges across the range of environmental health responsibilities.
How to Become a Registered Environmental Health Specialist
To become a registered environmental health professional, follow these key steps:
- Earn a bachelor's degree in a relevant field
- Complete required coursework and gain work experience
- Submit your application to the certifying body
- Begin exam preparation
- Schedule and take the exam
The process of scheduling the exam is typically done through Pearson VUE testing centers, offering flexibility in timing and location.
REHS Exam Preparation and Structure
Proper exam preparation is essential for passing the certification exam. The REHS exam consists of multiple domains covering content areas included in environmental health practice.
Areas Included in the Exam
The areas included in the exam typically cover:
- Food safety and sanitation
- Water quality and wastewater systems
- Indoor air quality
- Hazardous waste and chemical safety
- Disaster and emergency planning
- Occupational safety and health
Using a practice exam or online practice exam can help candidates become familiar with the format. Reviewing practice exam questions is also highly recommended.
Study Tips
- Focus on real-world applications of environmental health issues
- Review regulations and case studies
- Use multiple study resources, including NEHA REHS/RS study guide materials, latest edition.
- Take at least one full practice exam before test day
Candidates who fail must wait a set number of days before retaking the exam, so preparation is key.
Public Health Impact of REHS Professionals
Environmental health specialists contribute significantly to public health by reducing risks associated with hazardous environments. Their work ensures compliance with laws that safeguard communities.
They address issues such as:
- Contamination of food and water
- Exposure to hazardous waste
- Poor air quality and pollution
- Workplace safety concerns tied to occupational health
Their efforts support both environmental scientists and specialists earned recognition for improving living conditions and preventing disease.
Continuing Education and Career Growth
Maintaining the registered environmental health specialist credential involves ongoing continuing education. Professionals must complete approved continuing education and a specific number of hours of continuing education to stay current.
This ensures that REHS professionals remain knowledgeable about evolving environmental health regulations, technologies, and best practices.
Career paths for environmental health specialists may include:
Leadership roles in health program management
Specialization in hazardous materials or waste management
Consulting in occupational health or environmental law
Why Pursue the REHS Credential?
The credential involves more than passing an exam—it reflects dedication to advancing health and safety standards. A credential holder is recognized for their expertise and commitment to the field.
Benefits include:
- Increased job opportunities
- Higher earning potential
- Professional credibility
- Opportunities in both public and private sectors
The demand for environmental health professionals continues to grow as societies prioritize sustainability and safety.
