NSF International

American public health and safety organisation based at Ann Arbor in Michigan, founded in 1944 as the National Sanitation Foundation and working worldwide. Writes standards and certifies products for drinking water treatment, food equipment and dietary supplements, audits and certifies good manufacturing practice for supplement and cosmetic makers, runs the certified for sport programme testing supplements for banned substances, and provides testing, auditing and regulatory consulting for the pharmaceutical, medical device and food industries.