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Cook County, IL Building Safety: Lead Paint (2026)

Significant Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified August 2026

Key Facts

Mitigation deadline (child/pregnant present)
30 days
Mitigation deadline (no child/pregnant)
90 days
First-offense fine
$100–$500 per day
Third-offense fine
$500–$1,000/day, up to 6 months jail
Enforcing agency
Cook County Dept. of Public Health

Summary

Cook County Department of Public Health can inspect rental units, order lead hazard mitigation within 30 or 90 days, and require lease disclosure: applying countywide outside Chicago and other delegate health agencies.

City-specific rules exist: Oak Park, Evanston, Des Plaines, and Chicago have their own lead paint rules that differ from Cook County's county-level regulations. If you live in one of those cities, check the city-specific page instead.

When a Mitigation Notice is issued for a Regulated Facility inspected as a result of an Elevated Blood Lead Level in a pregnant person or a Child, or if the Regulated Facility is occupied by a Child six years of age or younger or a pregnant person, the Owner shall mitigate the Lead Hazard within 30 days of receiving the Mitigation Notice. When no such Child or pregnant person occupies the Regulated Facility, the Owner shall complete the Lead Mitigation within 90 days.

Source: Cook County Code of OrdinancesView official code

Full Breakdown

Cook County's Lead Poisoning Prevention Ordinance (Ch. 38, Art. X) makes it every rental owner's duty to maintain the unit so no Lead Hazard exists. After a child or pregnant occupant tests with an elevated blood lead level, CCDPH inspects and, upon finding a hazard, serves a Mitigation Notice: the owner must complete mitigation within 30 days if a young child or pregnant person occupies the unit, or 90 days otherwise, and post warnings in common areas. Before renewing or signing a lease on a unit under a Mitigation Notice, the owner must give the tenant the notice and inspection report with a signed receipt, or obtain a Certificate of Compliance. Pre-1978 rentals require a lead-hazard brochure before any lease.

Violations & Fines

Fines run $100–$500 per day per violation; a third offense within two years jumps to $500–$1,000 per day plus up to six months in jail. CCDPH can also issue stop-work orders.

Frequently Asked Questions

Does this apply to my rental in Chicago?
No. Cook County's ordinance covers areas outside the boundaries of another Delegate Agency; Chicago runs its own lead program, so CCDPH does not enforce this ordinance there.
What must I give tenants if my unit had a lead hazard?
Before a new lease or renewal, give the tenant the Mitigation Notice and inspection report and get a signed receipt, unless you've already obtained a Certificate of Compliance.

Sources & Official References

Other rules in Cook County

All Cook County rules

Compare Cook County to another location·View the Illinois building safety overview

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