The state law is only the first layer.
The biggest legal detail for travelers is that Illinois gives residents higher possession limits than non-residents. Home cultivation remains a medical-patient privilege rather than a general adult-use right.
City licensing, zoning, retailer verification, taxes and consumption options can change what legalization feels like on the ground. The city guides below keep the statewide rule visible while adding the local layer that actually affects a visit, a home grow or a job search.
