Ontario, Calif. — The IAPMO Standards Council on Nov. 4 issued Tentative Interim Amendments affecting the 2009 and 2012 editions of the Uniform Plumbing Code (UPC®). TIAs UPC-012-09 and UPC-002-12 replace code language related to lead content in piping systems used to convey potable water in order to bring the codes in line with a Read more