Tustin, CA Public Conduct: Loud Party Ordinance (2026)

Tustin City Code §§ 6340 through 6345 govern police response to large parties, gatherings, or events on private property. Section 6340 recites the City's finding that officers have had to return as many as three times to disburse uncooperative participants at the same gathering, draining department resources and leaving other areas short of police protection. Section 6341 defines a 'large party, gathering, or event' as a group assembled for a social occasion or activity, and defines 'person responsible for the event' broadly to include every tenant, renter, lessee, resident owner, person in charge of the premises, and the event's organizer; if that person is a minor, the minor's parents or guardians become jointly and severally liable for the costs.

Section 6342 is the operative rule: when an officer determines a party threatens public peace, health, safety or welfare, the officer orders a 'special security assignment' to control the threat and disperse the gathering, and the responsible person becomes liable for the police services fee starting with the second response and every response after that. Section 6343 ties the fee to actual cost of services under a schedule set by City Council resolution, and treats unpaid fees as a debt collectible through a civil action that can include the City's attorney's fees.

Sections 6344 and 6345 route billing through the Chief of Police and City's Chief of Collections. The scheme, adopted by Ord. No. 1098 in 1992, expressly supplements rather than replaces other enforcement tools such as State Penal Code arrests.