Vehicle Use on Open Areas & Vacant Lots

Responsibilities of Property Owners

Property owners are required to limit the emission of dust if an open area or vacant lot:
  1. Is at least 0.10 acre, and
  2. At least 500 square feet is being disturbed by vehicles
Dust control measures include preventing vehicle access by installing barriers or fences, or posting no trespassing signs. Areas that have been disturbed by motor vehicles or off-road vehicles can be re-stabilized by surface gravel, dust suppressants, or vegetative cover.

Dust Caused by Trespassers

If trespassers are the source of the dust emissions from a vacant lot or open area, the owner or operator of the area is required to implement dust control measures. Owners or operators are encouraged to notify local law enforcement agencies if the criminal trespass activity continues to occur. (For Arizona statutes regarding trespass, see A.R.S. §13-1502, A.R.S. §13-1503, A.R.S. §13-1504, and A.R.S. §13-1603.)

Responsibilities of Vehicle Owners & Operators

Vehicle owners and operators are responsible for knowing where they are allowed to operate vehicles.

Vehicle owners or operators are not allowed to use motor vehicles on any unpaved public or private property within the unincorporated areas of Maricopa County without lawful authority.

More Information

For more information, please consult the Vehicle Use in Open Areas Brochure (PDF) or Rule 310.01 (PDF) § 302.4, or call 602-506-6010.

Page reviewed 29 March 2019