Illinois Expands Lead Testing Law: All Children Under 2 Must Be Screened

Illinois just marked one of the most significant public health changes in years, which is aimed at protecting young children.

A Major Change for Families Across Illinois

Beginning July 1, every Illinois child will be covered under expanded state lead testing requirements from the Illinois Department of Public Health (IDPH), which eliminates the previous system that only required testing for children living in high-risk Illinois zip codes.

Health officials say the statewide expansion is the result of years of work to identify children exposed to lead before permanent health problems begin to develop.

Early Detection Could Prevent Lifelong Health Problems

Under the new law, children will automatically receive blood lead tests at 12 and 24 months of age, regardless of where they live in Illinois.

There is no safe level of lead in the blood. Through our Childhood Lead Program, IDPH has identified thousands of children who have been exposed to lead, allowing for early intervention to address negative health effects and implementation of efforts to limit further exposure. -IDPH Director Dr. Sameer Vohra

Healthcare providers will also assess all children aged six and younger for possible lead exposure using the standardized questionnaire.

What Happens if Lead is Found?

Illinois law requires public health action when a child's confirmed blood lead level exceeds 3.5 micrograms per deciliter. That response includes a home inspection to identify potential lead hazards and guidance from public health nurses to help families reduce future exposure.

Lead poisoning can damage a child's brain and nervous system while contributing to developmental delays, learning disabilities, behavioral problems, and slowed growth.

State officials say expanding testing to every Illinois zip code will give more children the opportunity for early diagnosis and intervention before those effects become lifelong challenges.