The Iowa Department of Public Health has recommended since 1992 that all children be tested for lead poisoning. House File 158 was passed by the 2007 legislature and was amended by the 2008 legislature. It became effective July 1, 2008, and requires all children entering kindergarten to have at least one lead test.
The goal of this legislation is to protect Iowan children under the age of 6 years from lead adverse effects in their developing brains and nervous systems and to reduce the number of children with developmental deficits and learning disorders related to lead exposure. The legislation has proven effective through an increase in the number of children tested, a decrease in the number of children with elevated blood leads and the routine child lead testing by physicians.