Rialto, CA Parking Rules: Commercial Vehicle Restrictions (2026)

Section 10.28.291 RMC is the core residential-zone rule: any commercial vehicle used primarily for business that has either (a) a one-ton-or-more carrying capacity, or (b) a manufacturer's GVW above 10,000 pounds, may not be stored in a residential zone. That captures most box trucks, semi tractors, dump trucks, and large delivery vans — they must be kept at a commercial/industrial yard or terminal, not at the driver's house. On public streets, California Vehicle Code §22507.5 authorizes Rialto to prohibit on-street parking of commercial vehicles with a manufacturer's GVWR of 10,000 lbs or more in residential districts (with carve-outs for active pickups, deliveries, and materials for projects under a valid building permit). For through-movement, Rialto regulates truck routes in Chapter 10.41 RMC: vehicles exceeding a 5-ton maximum gross weight must use designated truck routes, and §10.41.060 RMC lets the City Engineer revoke approved routes or terminals if they become a traffic hazard. The city completed a 2022 Citywide Truck Route Study covering truck counts, public input, and inter-city commercial vehicle regulation. At the regional layer, SCAQMD Rule 2305 (Warehouse Actions and Investments to Reduce Emissions — the Warehouse ISR) imposes diesel/idling-reduction obligations on warehouses 100,000 sq ft or larger that drive how fleets stage and idle inside Rialto.