Applicants for registration as an environmental health specialist must pass the Registered Environmental Health Specialist Examination (REHS). The exam must be passed within three years preceding the date of application for registration.
Applicants approved to sit for the REHS examination receive a letter from OHLA describing the necessary steps to take the exam. Requests to sit for the REHS examination usually take two to three weeks for processing by NEHA.
Note: Applicants who are coming to Oregon via the reciprocity pathway (already licensed in another state) do not need to take the REHS examination.