The National Registry of Environmental Professionals (NREPSM), established in 1987, is the foremost not-for-profit organization in the environmental and safety industries. We are committed to providing professional growth through certification. Our organization offers certification programs to provide global recognition for professionals based upon their education, field knowledge, and professional attributes. NREPSM is the largest not-for-profit accrediting organization and is recognized by the United States Department of Energy (DOE) and United States Environmental Protection Agency (EPA).The National Registry of Environmental Professionals has established a network of over 15,000 members worldwide.