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Social Hosting Ordinance

Beginning July 1, 2009 Casa Grande has a new ordinance impacting parties and large gatherings, especially if underage drinking occurs.

1. If there is a party in your home and underage drinking or drug use occurs, the adult(s) present can be cited under the social host law. This applies whether the adults knowingly supplied the alcohol or not. This also applies to older peers, friends, siblings etc. who host parties in their parent's absence, or in their own apartment/home.

2. When a party of 5 or more people occurs, and police respond to a complaint for disturbing the peace, they can choose to 'tag' your house as having an 'unruly gathering', and the party host can be cited ($100). The owner of the property will also be notified by mail. If another unruly party occurs within 6 months, the party host can get a larger fine ($500), and the property owner can also be fined. Future offenses escalate the fines. Some landlords may choose to evict their tenants after the first unruly gathering posting.

What can you do?
  • Learn about the new ordinance.
  • Monitor all gatherings where youth are present.
  • Make regular checks to make certain there is no underage drinking or drug use going on.
  • If you plan a large gathering, notify your neighbors ahead of time and give them your contact information. Abide by City noise and traffic ordinances.
  • Make your home a safe place for young and old alike to party safe/party sober.

Below are excerpts from the new ordinance.

City of Casa Grande Ordinance

No. 1397.09.05

9.16.050 - Permitting or Encouraging Underage Drinking

(a) No person eighteen years or older who owns or occupies any premises shall knowingly permit or fail to take reasonable action to prevent illegal consumption of spirituous liquor or drugs by any person.

(b) A person who violates this section is guilty of a class 1 misdemeanor.

9.08.010 - Unruly Gatherings


A peace officer may abate an unruly gathering by reasonable means, but not limited to, citation or arrest of violators and dispersal of the persons attending the gathering.

An unruly gathering Is a gathering of five or more persons on any private property In a manner which (abuses a disturbance of the quiet enjoyment of private or public property by any person or persons. Such disturbances include, but are not limited to, excessive noise or traffic, obstruction of public streets by crowds or vehicles, drinking in public, the service of alcohol to minors or consumption of alcohol by minors, fighting, disturbing the peace, and littering.

The premises shall be posted and any subsequent unruly gathering within 180 days shall result In liability for persons in attendance causing the unruliness or any owner, occupant or tenant, or sponsor of the event. The property owner of record will be notified by mail of the posting. Removal of the posting without court approval can result in a $100 fine.

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