Several state laws guide the Illinois Historic Preservation Agency’s work and spell out the rights and responsibilities of property owners.

Historic Preservation Act (20 ILCS 3410)
The law creates the Illinois Historic Sites Advisory Council, which reviews nominations to the National Register of Historic Places.

Illinois State Agency Historic Resources Preservation Act (20 ILCS 3420)
Requires state agencies to follow preservation protocols for projects receiving state funding, permits or licenses. The procedures parallel federal law under Section 106 of the National Historic Preservation Act.

Archaeological and Paleontological Resources Protection Act (20 ILCS 3435)
Protects archaeological resources on public lands in Illinois.

Human Skeletal Remains Protection Act (20 ILCS 3440)
Establishes protection for human burials and burial markers that are more than 100 years old and not included in any registered cemeteries.

Property Tax Assessment Freeze (35 ILCS 200/10-40)
Establishes the state property tax assessment freeze for residential, owner-occupied properties that meet preservation and expenditure requirements. ​