Advance Your Career with a NEHA Credential


Receive the recognition you deserve for your expertise by earning one of the environmental health credentials offered by the National Environmental Health Association (NEHA). Founded in 1937 by practitioners who wanted to establish a standard of excellence for the profession, that standard has come to be known as the Registered Environmental Health Specialist or Registered Sanitarian (REHS/RS) credential. Since that time, NEHA has developed additional credentials that evidence mastery of specialized knowledge. NEHA is striving to make the credentialing process as convenient as possible.


These marks of distinction assist both employers and the credentialed individual. Employers can be confident that a credentialed employee has acquired the knowledge necessary to competently perform their duties. Credentialed individuals may find positions easier to obtain and may increase their earnings.


REHS/RS Credential - Environmental Health Specialist and SanitarianRegistered Environmental Health Specialist/Registered Sanitarian (REHS/RS) Credential

The REHS/RS is the premiere NEHA credential. It is available to a wide range of environmental health professionals.  Individuals holding the REHS/RS credential show competency in environmental health issues, direct and train personnel to respond to routine or emergency environmental health situations, and frequently provide education to their communities on environmental health concerns.  

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CCFS and CP-FS Credentials - Food SafetyCertified in Comprehensive Food Safety (CCFS) Credential

The Food Safety Modernization Act (FSMA) has recast the food safety landscape, including the role of the food safety professional. To position this field for the future, the National Environmental Health Association (NEHA) is proud to announce its newest credential—Certified in Comprehensive Food Safety (CCFS). An individual that earns the CCFS credential will demonstrate expertise in how to assure food is safe for consumers throughout the entire food supply chain from farm to fork.

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CCFS and CP-FS Credentials - Food Safety

Certified Professional - Food Safety (CP-FS) Credential

The Certified Professional - Food Safety is for food safety professionals and is designed for individuals within the public and private sectors whose primary responsibility is the protection and safety of food. The exam for this prestigious credential integrates food microbiology, HACCP principles and regulatory requirements into questions that test problem solving skills and knowledge.

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Healthy Homes Specialist - HHSHealthy Homes Specialist (HHS) Credential

Few professional fields are growing and changing as rapidly as environmental health. Attainment of the HHS credential demonstrates professional direction, achievement and the knowledge to carry out functions and duties of a technical nature in a responsible manner. The HHS exam tests your understanding of the connection between health and housing, enabling you to take a holistic approach to identify and resolve problems that threaten the health and well-being of residents and was developed in partnership with the National Center for Healthy Housing (NCHH). 

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Certified Installer of Onsite Wastewater Treatment Systems (CIOWTS) Credential Certified Installers of Onsite Wastewater Treatment Systems (CIOWTS)  Credential

Through a cooperative agreement with the U.S. Environmental Protection Agency (USEPA), NEHA has worked with and various partner groups to develop a national credential to certify installers of onsite wastewater treatment systems. The credential covers all forms of installation and will be offered at both a basic and advanced levels.

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Certified Environmental Health Technician (CEHT) CredentialCertified Environmental Health Technician (CEHT) Credential

The CEHT is for individuals who are interested in field intensive environmental health activities such as testing, sampling, and inspections and who are required to provide information on safe environmental health practices to eliminate environmental health hazards. Individuals holding the CEHT provide technical support and assistance to a variety of professionals (environmental health specialists, health officers, sanitary engineers, etc.) and often coordinate sanitation and environmental health activities with state and local public health units.  

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Want to learn more about Credentials? 

View a presentation by NEHA’s Credentialing Coordinator, TJay Gerber, provides 20 minutes of information related to the credentialing program and to NEHA. He then answers questions provided by the webinar attendees for the next 30 minutes. This outlines the benefit of holding a NEHA credential, and specifically the Registered Environmental Health Specialist/Registered Sanitarian (REHS/RS).



Interested in maintaining your RET, RHSP and RHSS Credentials? Please contact the Credentialing Department at (303) 756-9090 ext. 310, or email