Ontario, CA Parking Rules: Street Parking Limits (2026)

Ontario regulates curb parking under the Traffic chapter of the Municipal Code (Title 4, Chapter 6). Section 4-6.1003 requires obedience to all official parking signs and curb markings, and no vehicle may stop, stand, or park in violation of a posted restriction. Section 4-6.1011 imposes a citywide 72-hour limit: a vehicle may not remain parked on any street, alley, or City-owned lot for 72 or more consecutive hours, and moving the vehicle a short distance does not reset the clock. The City has rolled out street-sweeping parking restrictions with posted signage, and citations are issued to vehicles left in the sweeping path during the posted hours. Painted curbs follow the standard California color code (red = no stopping, blue = disabled, etc.), and where the local code is silent the California Vehicle Code controls.