John Steinberg, principal author of the PGI Shooters Certification course textbook is a licensed lead operator for 25 years. John serves on the NFPA SFX TC and is a principal member of the NFPA Technical Committee on Pyrotechnics, which writes NFPA-1123, NFPA-1124, and other documents and he will be happy to answer any code questions you may have. Contrary to a popular cultist belief, John is not an anarchist and, in fact, he takes his MSDS very seriously, and brushes after every meal.