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Certifications

National Testing Laboratories has one of the most extensive and impressive list of certifications in the industry. This includes Multi-State and NELAC certification and we participate in the USEPA Proficiency Testing Program. Additionally, our laboratory management system has proudly maintained ISO 17025:2005 accreditation since the year 2010. If you don't see your state listed in the chart below, call one of our Technical Service Representatives for more information. We are constantly updating our certification list.