We welcome on Doug Hamilton to discuss the recent announcement from the Massachusetts Board of State Examiners of Plumbers and Gas Fitters to Fuel Gas Code, 248 CMR 5.00, impacting the materials that can be used for the venting of appliances by stating, "The only plastic piping which may be used for venting appliances shall be CPVC, polypropylene, and other pipes which have been product-accepted for that purpose by the Board."