The Michigan Construction Code Commission denied approval of imported cast iron soil pipe and fittings from MWI Import Products for use on state construction projects in Michigan, as recommended by the Michigan Plumbing Board. MWI was unable to provide proof that its products conformed to applicable standards referenced in the Michigan Plumbing Code and did not comply with an earlier resolution of the Plumbing Board, according to a report by Michigan Chief Plumbing Inspector Bob Konyndyk. MWI, based in Oceanside, CA, purchases hubless cast iron soil pipe and fittings from various manufacturers located in the Peoples Republic of China.