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John Gregory has more than 37 years of experience in medical gas system design and inspection, process piping, plumbing and fire protection system design for multiple business classes. He is a certified medical gas inspector, NITC 6020. Gregory serves on the NFPA 99 Technical Committee for piping and installation, and he is a co-chair of the PIPE Medical Gas Committee in Arizona. He is the assistant vice president at WSP; email him at john.gregory@wsp.com.