Champaign, IL Public Conduct: Loud Party Ordinance (2026)

Section 22-820 defines a 'nuisance party' as any party or social gathering on private residential property where attendees commit two or more Category 1 violations, or one or more Category 2 violations, on the site or on adjacent public or private property. 5. Category 2 violations are more serious: false alarms, assault, battery, reckless conduct, fighting, property damage, disorderly conduct, drug paraphernalia possession, throwing dangerous materials, and firearms possession or discharge, among others. Section 22-821 then fixes liability on whoever has legal possession or possessory control of the premises, whether owner, tenant or occupant, and who sponsors, conducts, hosts, invites or permits the gathering, but only if that person knowingly, recklessly or negligently let it become a nuisance party and had already received a police warning about a nuisance party at that address within the preceding twelve months, so a first-time incident without a prior warning does not itself trigger liability under this section.

Once a party is underway, Section 22-822 lets the Police Chief or a designee order it to cease and everyone not residing there to leave immediately; refusing that order is itself a separate violation. Section 22-823 sets the penalty for the whole article at whatever Section 1-21 of the general code prescribes, tying nuisance party enforcement into the city's standard municipal ordinance penalty schedule rather than a bespoke fine.