San Bernardino County, CA Parking Rules: Overnight Parking (2026)

Unlike many incorporated cities, the unincorporated County has no blanket overnight parking prohibition and no residential overnight permit program on its general street network. The governing rule is County Code Section 52.0119, 'Use of Streets for Storage of Vehicles Prohibited,' which prohibits leaving a vehicle on a street or alley for more than 72 consecutive hours but does not single out nighttime hours. As a result, parking overnight on most unincorporated streets is allowed, provided the vehicle is otherwise legally parked and is moved before the 72-hour window closes. There are narrower exceptions. In mountain communities, County Code Title 5, Division 3, Chapter 3 (Parking Regulations in Mountain Areas) establishes seasonal snow-removal and other parking controls that can restrict overnight or winter parking on posted roads. County parking lots are separately governed by County Code Chapter 6 of Division 3 of Title 5, which restricts parking to marked stalls and posted conditions. Overnight occupancy of a vehicle (sleeping in an RV or car) on residential property is constrained by the Development Code's camping and temporary-structure rules (Section 84.25.070). Drivers should watch for posted signs, especially in mountain and desert recreation areas where local restrictions are most common.