How Ontario Handles Public Conduct: A Practical Guide

Ontario maintains 126 local ordinances across all categories, and 7 of those deal specifically with public conduct. Here is a breakdown of what the city actually requires, what is prohibited, and where Ontario falls on the strict-to-permissive spectrum compared to other cities.

Outdoor Smoking Restrictions

Ontario bans smoking tobacco, using electronic delivery devices, and consuming cannabis in every public park in the city, at all times, day or night. The ban covers restrooms, playgrounds, athletic fields, aquatic areas, and city-owned parking lots at those parks, but excludes city golf courses. Violators face escalating infractions of $50, $100, and $200 for repeat offenses within a year.

Key details: Scope: All public parks, 24/7/365. Covers: Tobacco, e-cigarettes/vapes, and cannabis. Excluded: City golf courses. First fine: $50 infraction. Repeat fines: Up to $100, then up to $200.

Each incident is an infraction under Section 6-13A.05: a $50 fine for a first violation, up to $100 for a second violation within one year, and up to $200 for each additional violation within that year. Enforcement of the chapter began one year after its effective date to allow time for signage and notice.

This is not one of those rules that cities tend to ignore. Ontario actively enforces its outdoor smoking restrictions requirements.

Jaywalking

Ontario Municipal Code Sec. 4-6.902 bars pedestrians from crossing a roadway anywhere except a marked crosswalk within the Central Traffic District or any business district. The City Traffic Engineer designates those crosswalks under Sec. 4-6.901, marking them at intersections and any other spot found particularly hazardous for pedestrians.

Key details: Rule: Pedestrians must use marked crosswalks. Where it applies: Central Traffic District and any business district. Central Traffic District bounds: Railroad tracks, G Street, Vine Avenue, Sultana Avenue. Crosswalk authority: City Traffic Engineer designates and marks crosswalks. Enforcing agency: Ontario Police Department Traffic Division.

Crossing outside a marked crosswalk within the Central Traffic District or a business district is a citable violation of Sec. 4-6.902, enforced by the Police Department's Traffic Division under its Sec. 4-6.202 duty to enforce street traffic regulations and applicable Vehicle Code provisions. Officers cite pedestrians only where the City has actually marked a crosswalk for the location in question under Sec. 4-6.901.

Skateboarding Rules

Ontario does not ban skateboarding, roller skating, or roller blading outright. Municipal Code Section 4-6.1903 makes it unlawful only when the activity becomes a nuisance, meaning it threatens injury, blocks or endangers pedestrians and motorists, or generates loud, unreasonable noise on public or private property.

Key details: State authority: Cal. Veh. Code § 21113(f). Trigger: Only when activity is a nuisance. Nuisance test: Injury, obstruction, or loud noise. Covers: Public property and commercial private property. School rule: Enforceable only if campus posts sign.

Skateboarding, roller skating, or roller blading in a manner that creates a nuisance, as defined in Section 4-6.1902(e), is charged as an infraction under Section 4-6.1904(b)(2)'s required sign language. On a school campus the prohibition is only enforceable once the district has posted the required sign naming both the school's own policy and the code section; without that posted notice the school-site prohibition does not apply. School-supervised recreational or athletic use remains exempt even on a posted campus.

The rules around skateboarding rules in Ontario lean permissive, but that does not mean anything goes.

Public Alcohol Use

Ontario Municipal Code Sec. 5-11.02 bans drinking alcohol or possessing an open alcoholic beverage container in any city park, city-owned property, or other public place, including streets, sidewalks, and parking lots, unless a City-approved event or Special Event Permit authorizes it.

Key details: Banned: drinking or open container in public. Alcohol threshold: 0.5% ABV or more. Off-sale stores: must post open-container warning signs. Exception: City event or Special Event Permit. Host insurance required: $1,000,000 liquor liability.

A violation of subsection (b) or (c) is punished as an infraction under subsection (g); violating (c), (d)(1), or (d)(2) is also expressly an infraction. Beyond that, Ontario Municipal Code Sec. 1-2.01 sets the Code's default range, up to a $1,000 misdemeanor fine and six months in jail, or escalating $100/$200/$500 infraction fines for repeat offenses.

Compared to other cities, Ontario takes a harder line on public alcohol use. The enforcement and penalty structure reflects that.

Public Urination

Ontario Municipal Code Sec. 5-23.06 bans urinating, defecating, or dumping fecal matter on public or private property in view of the public, on any street, sidewalk, alley, or park, unless done in a restroom or facility built for that purpose. The rule was added by Ord. 3311, effective September 18, 2025.

Key details: Governing section: Ontario Municipal Code Sec. 5-23.06. Effective date: September 18, 2025 (Ord. 3311). Covers: Public and private property in public view. Exception: Restroom or facility designed for the purpose. Enforcement: Sec. 5-23.07, separate offense per day.

Urinating, defecating, or dumping fecal matter in public view anywhere in the City, other than in a restroom or designated facility, is a separately punishable offense for each day it occurs under Sec. 5-23.07. The City may pursue criminal prosecution, administrative citation, or civil remedies including injunctive relief, and may combine these remedies.

Compared to other cities, Ontario takes a harder line on public urination. The enforcement and penalty structure reflects that.

Loud Party Ordinance

Any gathering of five or more people that turns loud or unruly is a declared public nuisance in Ontario, with fixed noise-distance triggers, mandatory minimum fines starting at $250, and joint liability reaching the property owner, resident, sponsor and every participant.

Key details: Gathering size trigger: 5 or more persons. Daytime noise threshold: audible at 50 ft, 7am-10pm. Nighttime noise threshold: audible at 25 ft, 10pm-7am. First offense: $250 minimum fine, infraction. Repeat offense: $250-$1,000 fine and/or 6 months jail.

Sec. 4-12.10 makes a first violation within 180 days an infraction carrying a mandatory minimum $250 fine. Any further violation within that 180-day window is a misdemeanor with a fine of no less than $250 and no more than $1,000, and/or up to six months in County jail; each day of a continuing violation is a separate offense, and the City may add cost recovery and record a lien against the property for unpaid penalties (Sec. 4-12.11).

This is one of the stricter rules in Ontario's municipal code. If you are unsure whether your situation complies, it is worth checking with the city before proceeding.

Loitering Rules

Ontario Municipal Code Sec. 5-7.04 makes it unlawful for a minor subject to compulsory school attendance to be in a public street, park, or other public place away from home during school hours, with exceptions for employment, medical appointments, home schooling, and school-authorized absences.

Key details: Applies during: school hours, school days. Applies to: minors subject to compulsory education. Exceptions: 11 listed, incl. work, medical, home school. Adopted: Ord. 2603, December 7, 1995. Repeat offenders: police services fee, Sec. 5-7.05.

A minor found daytime loitering in violation of Sec. 5-7.04 is subject to the same penalty structure as a curfew violation under Ontario Municipal Code Sec. 1-2.01, either a misdemeanor punishable by up to a $1,000 fine and six months in jail or, when charged as an infraction, escalating $100/$200/$500 fines; the City can also bill repeat violators a police services fee under Sec. 5-7.05.

This is one of the stricter rules in Ontario's municipal code. If you are unsure whether your situation complies, it is worth checking with the city before proceeding.

The Bottom Line

Ontario is tougher than many cities when it comes to public conduct. Out of the 7 rules covered here, 5 are rated strict. If you are a homeowner, renter, or business owner in Ontario, take the time to understand these requirements before they become a problem. Most violations come with fines, and some repeat violations can escalate.

These rules come from Ontario's publicly available municipal code. For complete penalty schedules, exemption details, and answers to common questions, see the individual ordinance pages throughout this guide.