Global public health and safety organization NSF International hosted a plumbing seminar on February 21 in Kaiping Pan Tower International Hotel, Guangdong, China. Representatives from companies that manufacture or sell plumbing products and components attended this half-day technical workshop and interacted with NSF water certification experts. Clif McLellan, Vice President of Water Systems at NSF International, was invited to help participants understand relevant regulations and standard requirements for plumbing products in the North American and UK markets, and the requirements and process of NSF plumbing product certification and testing.