Halloween is a time when masks are worn and candy fills the bags. Cities and towns regulate Halloween with trick-or-treating rules for safety reasons, so it's essential to check local Halloween laws.
In Illinois, many cities limit trick-or-treating to earlier hours, often between 4 p.m., with some adding age limits for participants. For example, in Belleville, trick-or-treating is allowed between 5 p.m. and is restricted to children at or below the eighth-grade level.
Some Halloween recommendations are unusual. The Chicago Police Department suggests trick-or-treating during the day, but also recommends wearing light-colored clothing, which would be more practical at night.
Additionally, there are rules regarding mask-wearing. In some areas, wearing masks is prohibited for anyone over 12 years old, except on Halloween, unless permission is granted by the mayor or chief of police.
The wearing of masks by anyone over the age of 12 without the express permission of the mayor or chief of police is prohibited on any day other than Halloween.
Author's summary: Illinois has specific trick-or-treating rules for Halloween.